Patent Law FAQ

This FAQ answers all your questions about patent law, patent procedure, and the patent examination process.

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MPEP 400 – Representative of Applicant or Owner (6)

The ‘reasonable inquiry’ requirement, as described in 37 CFR 11.18(b)(2), mandates that submissions to the USPTO be made ‘to the best of the party’s knowledge, information and belief, formed after an inquiry reasonable under the circumstances.’ This standard is similar to Rule 11 of the Federal Rules of Civil Procedure.

The MPEP clarifies: An ‘inquiry reasonable under the circumstances’ requirement of 37 CFR 10.18(b)(2) is identical to that in Fed. R. Civ. P. 11(b). The federal courts have stated in regard to the ‘reasonable inquiry’ requirement of Fed. R. Civ. P. 11: In requiring reasonable inquiry before the filing of any pleading in a civil case in federal district court, Rule 11 demands ‘an objective determination of whether a sanctioned party’s conduct was reasonable under the circumstances.’

For more information on patent application requirements, visit: patent application requirements.

Form PTO/AIA/82 is a USPTO form used by the applicant for patent to appoint one or more patent practitioners as power of attorney. This form consists of three parts:

  • Part A (PTO/AIA/82A): A transmittal page used to identify the application to which the power of attorney is directed. It must be signed by a proper 37 CFR 1.33(b) party.
  • Part B (PTO/AIA/82B): The actual power of attorney, which may also specify the correspondence address. This part must be signed by the applicant.
  • Part C (PTO/AIA/82C): An optional page that may be used to appoint up to 10 patent practitioners by name and registration number.

The MPEP notes that “PTO/AIA/82 may be used like a general power of attorney, if desired.” For example, an officer of a juristic entity assignee could sign Part B, leaving the “Application Number” and “Filing Date” boxes empty. Then, a patent practitioner could complete and sign one Part A for each respective application and file a copy of Part B with each Part A.

It’s important to note that the “Application Number” and “Filing Date” boxes on Part B must be completed to identify the application if Part A or an equivalent is not filed with Part B. These boxes may not be filled in by a patent practitioner after Part B has been signed by the applicant.

To learn more:

What is the difference between a correspondence address and a fee address in USPTO filings?

In USPTO filings, the correspondence address and fee address serve different purposes:

  • Correspondence Address: Where the USPTO sends all official communications regarding a patent application or patent.
  • Fee Address: Where the USPTO sends maintenance fee reminders for granted patents.

The MPEP clarifies:

The correspondence address is the address associated with the Customer Number to which correspondence is directed. The fee address is the address associated with the Customer Number to which maintenance fee reminders are directed. (MPEP 403)

While these addresses can be the same, they don’t have to be. Applicants or patent owners might choose different addresses, for example, if a law firm handles prosecution but the company itself manages maintenance fees. Using a customer number allows for easy management of both addresses.

For more information on Correspondence Address, visit: Correspondence Address.

For more information on Customer Number, visit: Customer Number.

For more information on Fee Address, visit: Fee Address.

For applications filed on or after September 16, 2012, the following parties may file a patent application as the applicant:

  • The inventor(s)
  • An assignee to whom the inventor has assigned the invention
  • An obligated assignee to whom the inventor is under an obligation to assign the invention
  • A person who otherwise shows sufficient proprietary interest in the matter

As stated in 37 CFR 1.46(a): “A person to whom the inventor has assigned or is under an obligation to assign the invention may make an application for patent. A person who otherwise shows sufficient proprietary interest in the matter may make an application for patent on behalf of and as agent for the inventor on proof of the pertinent facts and a showing that such action is appropriate to preserve the rights of the parties.”

Canadian patent agents must meet specific requirements to practice before the USPTO under limited recognition:

  • They must be registered and in good standing as a patent agent under Canadian law.
  • They must apply for limited recognition to the USPTO Director.
  • They can only represent Canadian citizens or residents before the USPTO.
  • Their representation is limited to the presentation and prosecution of patent applications of Canadian applicants.

As stated in MPEP 402.01: Canadian patent agents are not required to pass the regular patent bar examination to represent Canadian applicants. They need not seek formal recognition to practice before the Office.

To learn more:

A ‘person to whom the inventor has assigned or is under an obligation to assign the invention’ refers to an individual or entity that has received rights to the invention through a legal agreement or contract. This concept is important in patent applications filed on or after September 16, 2012, as explained in MPEP 409.05:

Quote: ‘A person to whom the inventor has assigned or is under an obligation to assign the invention may make an application for patent.’

This provision allows assignees or those with a contractual right to the invention to file patent applications, even if they are not the original inventors.

To learn more:

MPEP 403 – Correspondence — With Whom Held; Customer Number Practice (1)

What is the difference between a correspondence address and a fee address in USPTO filings?

In USPTO filings, the correspondence address and fee address serve different purposes:

  • Correspondence Address: Where the USPTO sends all official communications regarding a patent application or patent.
  • Fee Address: Where the USPTO sends maintenance fee reminders for granted patents.

The MPEP clarifies:

The correspondence address is the address associated with the Customer Number to which correspondence is directed. The fee address is the address associated with the Customer Number to which maintenance fee reminders are directed. (MPEP 403)

While these addresses can be the same, they don’t have to be. Applicants or patent owners might choose different addresses, for example, if a law firm handles prosecution but the company itself manages maintenance fees. Using a customer number allows for easy management of both addresses.

For more information on Correspondence Address, visit: Correspondence Address.

For more information on Customer Number, visit: Customer Number.

For more information on Fee Address, visit: Fee Address.

MPEP 410 – Representations to the U.S. Patent and Trademark Office (1)

The ‘reasonable inquiry’ requirement, as described in 37 CFR 11.18(b)(2), mandates that submissions to the USPTO be made ‘to the best of the party’s knowledge, information and belief, formed after an inquiry reasonable under the circumstances.’ This standard is similar to Rule 11 of the Federal Rules of Civil Procedure.

The MPEP clarifies: An ‘inquiry reasonable under the circumstances’ requirement of 37 CFR 10.18(b)(2) is identical to that in Fed. R. Civ. P. 11(b). The federal courts have stated in regard to the ‘reasonable inquiry’ requirement of Fed. R. Civ. P. 11: In requiring reasonable inquiry before the filing of any pleading in a civil case in federal district court, Rule 11 demands ‘an objective determination of whether a sanctioned party’s conduct was reasonable under the circumstances.’

For more information on patent application requirements, visit: patent application requirements.

Patent Law (6)

The ‘reasonable inquiry’ requirement, as described in 37 CFR 11.18(b)(2), mandates that submissions to the USPTO be made ‘to the best of the party’s knowledge, information and belief, formed after an inquiry reasonable under the circumstances.’ This standard is similar to Rule 11 of the Federal Rules of Civil Procedure.

The MPEP clarifies: An ‘inquiry reasonable under the circumstances’ requirement of 37 CFR 10.18(b)(2) is identical to that in Fed. R. Civ. P. 11(b). The federal courts have stated in regard to the ‘reasonable inquiry’ requirement of Fed. R. Civ. P. 11: In requiring reasonable inquiry before the filing of any pleading in a civil case in federal district court, Rule 11 demands ‘an objective determination of whether a sanctioned party’s conduct was reasonable under the circumstances.’

For more information on patent application requirements, visit: patent application requirements.

Form PTO/AIA/82 is a USPTO form used by the applicant for patent to appoint one or more patent practitioners as power of attorney. This form consists of three parts:

  • Part A (PTO/AIA/82A): A transmittal page used to identify the application to which the power of attorney is directed. It must be signed by a proper 37 CFR 1.33(b) party.
  • Part B (PTO/AIA/82B): The actual power of attorney, which may also specify the correspondence address. This part must be signed by the applicant.
  • Part C (PTO/AIA/82C): An optional page that may be used to appoint up to 10 patent practitioners by name and registration number.

The MPEP notes that “PTO/AIA/82 may be used like a general power of attorney, if desired.” For example, an officer of a juristic entity assignee could sign Part B, leaving the “Application Number” and “Filing Date” boxes empty. Then, a patent practitioner could complete and sign one Part A for each respective application and file a copy of Part B with each Part A.

It’s important to note that the “Application Number” and “Filing Date” boxes on Part B must be completed to identify the application if Part A or an equivalent is not filed with Part B. These boxes may not be filled in by a patent practitioner after Part B has been signed by the applicant.

To learn more:

What is the difference between a correspondence address and a fee address in USPTO filings?

In USPTO filings, the correspondence address and fee address serve different purposes:

  • Correspondence Address: Where the USPTO sends all official communications regarding a patent application or patent.
  • Fee Address: Where the USPTO sends maintenance fee reminders for granted patents.

The MPEP clarifies:

The correspondence address is the address associated with the Customer Number to which correspondence is directed. The fee address is the address associated with the Customer Number to which maintenance fee reminders are directed. (MPEP 403)

While these addresses can be the same, they don’t have to be. Applicants or patent owners might choose different addresses, for example, if a law firm handles prosecution but the company itself manages maintenance fees. Using a customer number allows for easy management of both addresses.

For more information on Correspondence Address, visit: Correspondence Address.

For more information on Customer Number, visit: Customer Number.

For more information on Fee Address, visit: Fee Address.

For applications filed on or after September 16, 2012, the following parties may file a patent application as the applicant:

  • The inventor(s)
  • An assignee to whom the inventor has assigned the invention
  • An obligated assignee to whom the inventor is under an obligation to assign the invention
  • A person who otherwise shows sufficient proprietary interest in the matter

As stated in 37 CFR 1.46(a): “A person to whom the inventor has assigned or is under an obligation to assign the invention may make an application for patent. A person who otherwise shows sufficient proprietary interest in the matter may make an application for patent on behalf of and as agent for the inventor on proof of the pertinent facts and a showing that such action is appropriate to preserve the rights of the parties.”

Canadian patent agents must meet specific requirements to practice before the USPTO under limited recognition:

  • They must be registered and in good standing as a patent agent under Canadian law.
  • They must apply for limited recognition to the USPTO Director.
  • They can only represent Canadian citizens or residents before the USPTO.
  • Their representation is limited to the presentation and prosecution of patent applications of Canadian applicants.

As stated in MPEP 402.01: Canadian patent agents are not required to pass the regular patent bar examination to represent Canadian applicants. They need not seek formal recognition to practice before the Office.

To learn more:

A ‘person to whom the inventor has assigned or is under an obligation to assign the invention’ refers to an individual or entity that has received rights to the invention through a legal agreement or contract. This concept is important in patent applications filed on or after September 16, 2012, as explained in MPEP 409.05:

Quote: ‘A person to whom the inventor has assigned or is under an obligation to assign the invention may make an application for patent.’

This provision allows assignees or those with a contractual right to the invention to file patent applications, even if they are not the original inventors.

To learn more:

Patent Procedure (6)

The ‘reasonable inquiry’ requirement, as described in 37 CFR 11.18(b)(2), mandates that submissions to the USPTO be made ‘to the best of the party’s knowledge, information and belief, formed after an inquiry reasonable under the circumstances.’ This standard is similar to Rule 11 of the Federal Rules of Civil Procedure.

The MPEP clarifies: An ‘inquiry reasonable under the circumstances’ requirement of 37 CFR 10.18(b)(2) is identical to that in Fed. R. Civ. P. 11(b). The federal courts have stated in regard to the ‘reasonable inquiry’ requirement of Fed. R. Civ. P. 11: In requiring reasonable inquiry before the filing of any pleading in a civil case in federal district court, Rule 11 demands ‘an objective determination of whether a sanctioned party’s conduct was reasonable under the circumstances.’

For more information on patent application requirements, visit: patent application requirements.

Form PTO/AIA/82 is a USPTO form used by the applicant for patent to appoint one or more patent practitioners as power of attorney. This form consists of three parts:

  • Part A (PTO/AIA/82A): A transmittal page used to identify the application to which the power of attorney is directed. It must be signed by a proper 37 CFR 1.33(b) party.
  • Part B (PTO/AIA/82B): The actual power of attorney, which may also specify the correspondence address. This part must be signed by the applicant.
  • Part C (PTO/AIA/82C): An optional page that may be used to appoint up to 10 patent practitioners by name and registration number.

The MPEP notes that “PTO/AIA/82 may be used like a general power of attorney, if desired.” For example, an officer of a juristic entity assignee could sign Part B, leaving the “Application Number” and “Filing Date” boxes empty. Then, a patent practitioner could complete and sign one Part A for each respective application and file a copy of Part B with each Part A.

It’s important to note that the “Application Number” and “Filing Date” boxes on Part B must be completed to identify the application if Part A or an equivalent is not filed with Part B. These boxes may not be filled in by a patent practitioner after Part B has been signed by the applicant.

To learn more:

What is the difference between a correspondence address and a fee address in USPTO filings?

In USPTO filings, the correspondence address and fee address serve different purposes:

  • Correspondence Address: Where the USPTO sends all official communications regarding a patent application or patent.
  • Fee Address: Where the USPTO sends maintenance fee reminders for granted patents.

The MPEP clarifies:

The correspondence address is the address associated with the Customer Number to which correspondence is directed. The fee address is the address associated with the Customer Number to which maintenance fee reminders are directed. (MPEP 403)

While these addresses can be the same, they don’t have to be. Applicants or patent owners might choose different addresses, for example, if a law firm handles prosecution but the company itself manages maintenance fees. Using a customer number allows for easy management of both addresses.

For more information on Correspondence Address, visit: Correspondence Address.

For more information on Customer Number, visit: Customer Number.

For more information on Fee Address, visit: Fee Address.

For applications filed on or after September 16, 2012, the following parties may file a patent application as the applicant:

  • The inventor(s)
  • An assignee to whom the inventor has assigned the invention
  • An obligated assignee to whom the inventor is under an obligation to assign the invention
  • A person who otherwise shows sufficient proprietary interest in the matter

As stated in 37 CFR 1.46(a): “A person to whom the inventor has assigned or is under an obligation to assign the invention may make an application for patent. A person who otherwise shows sufficient proprietary interest in the matter may make an application for patent on behalf of and as agent for the inventor on proof of the pertinent facts and a showing that such action is appropriate to preserve the rights of the parties.”

Canadian patent agents must meet specific requirements to practice before the USPTO under limited recognition:

  • They must be registered and in good standing as a patent agent under Canadian law.
  • They must apply for limited recognition to the USPTO Director.
  • They can only represent Canadian citizens or residents before the USPTO.
  • Their representation is limited to the presentation and prosecution of patent applications of Canadian applicants.

As stated in MPEP 402.01: Canadian patent agents are not required to pass the regular patent bar examination to represent Canadian applicants. They need not seek formal recognition to practice before the Office.

To learn more:

A ‘person to whom the inventor has assigned or is under an obligation to assign the invention’ refers to an individual or entity that has received rights to the invention through a legal agreement or contract. This concept is important in patent applications filed on or after September 16, 2012, as explained in MPEP 409.05:

Quote: ‘A person to whom the inventor has assigned or is under an obligation to assign the invention may make an application for patent.’

This provision allows assignees or those with a contractual right to the invention to file patent applications, even if they are not the original inventors.

To learn more: