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 (2)

The correspondence address in a patent application is the address where the United States Patent and Trademark Office (USPTO) will send all official communications regarding the application. According to 37 CFR 1.33(a):

“When filing an application, a correspondence address must be set forth in either an application data sheet (§ 1.76), or elsewhere, in a clearly identifiable manner, in any paper submitted with an application filing.”

This address is crucial for ensuring that applicants receive all necessary information and notifications about their patent application.

To learn more:

The USPTO generally does not engage in double correspondence with applicants and their representatives. Specifically:

  • The Office will not correspond with both an applicant and their attorney/agent.
  • The Office will not correspond with more than one attorney/agent.
  • If double correspondence is attempted, the examiner will include form paragraph 4.01 in the next Office action.

According to MPEP 403: “Double correspondence with an applicant and their attorney, or with two representatives, will not be undertaken. See MPEP §§ 403.01(a), 403.01(b), 403.02, and 714.01(d).”

Form paragraph 4.01 states: “Applicant has appointed an attorney or agent to conduct all business before the Patent and Trademark Office. Double correspondence with an applicant and applicant’s attorney or agent will not be undertaken. Accordingly, applicant is required to conduct all future correspondence with this Office through the attorney or agent of record. See 37 CFR 1.33.”

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

The USPTO generally does not engage in double correspondence with applicants and their representatives. Specifically:

  • The Office will not correspond with both an applicant and their attorney/agent.
  • The Office will not correspond with more than one attorney/agent.
  • If double correspondence is attempted, the examiner will include form paragraph 4.01 in the next Office action.

According to MPEP 403: “Double correspondence with an applicant and their attorney, or with two representatives, will not be undertaken. See MPEP §§ 403.01(a), 403.01(b), 403.02, and 714.01(d).”

Form paragraph 4.01 states: “Applicant has appointed an attorney or agent to conduct all business before the Patent and Trademark Office. Double correspondence with an applicant and applicant’s attorney or agent will not be undertaken. Accordingly, applicant is required to conduct all future correspondence with this Office through the attorney or agent of record. See 37 CFR 1.33.”

Patent Law (3)

The MPEP provides guidance on what constitutes a valid mailing address for inventors in patent applications. According to MPEP 602.08(a):

“The inventor’s mailing address means that address at which he or she customarily receives his or her mail, even if it is not the main mailing address of the inventor. Either the inventor’s home or business address is acceptable as the mailing address. A post office box is also acceptable.”

The mailing address should include the ZIP Code designation. It’s important to note that the address of an attorney with instructions to forward communications is not sufficient, as the purpose is to enable direct communication between the USPTO and the inventor if necessary.

To learn more:

The correspondence address in a patent application is the address where the United States Patent and Trademark Office (USPTO) will send all official communications regarding the application. According to 37 CFR 1.33(a):

“When filing an application, a correspondence address must be set forth in either an application data sheet (§ 1.76), or elsewhere, in a clearly identifiable manner, in any paper submitted with an application filing.”

This address is crucial for ensuring that applicants receive all necessary information and notifications about their patent application.

To learn more:

The USPTO generally does not engage in double correspondence with applicants and their representatives. Specifically:

  • The Office will not correspond with both an applicant and their attorney/agent.
  • The Office will not correspond with more than one attorney/agent.
  • If double correspondence is attempted, the examiner will include form paragraph 4.01 in the next Office action.

According to MPEP 403: “Double correspondence with an applicant and their attorney, or with two representatives, will not be undertaken. See MPEP §§ 403.01(a), 403.01(b), 403.02, and 714.01(d).”

Form paragraph 4.01 states: “Applicant has appointed an attorney or agent to conduct all business before the Patent and Trademark Office. Double correspondence with an applicant and applicant’s attorney or agent will not be undertaken. Accordingly, applicant is required to conduct all future correspondence with this Office through the attorney or agent of record. See 37 CFR 1.33.”

Patent Procedure (3)

The MPEP provides guidance on what constitutes a valid mailing address for inventors in patent applications. According to MPEP 602.08(a):

“The inventor’s mailing address means that address at which he or she customarily receives his or her mail, even if it is not the main mailing address of the inventor. Either the inventor’s home or business address is acceptable as the mailing address. A post office box is also acceptable.”

The mailing address should include the ZIP Code designation. It’s important to note that the address of an attorney with instructions to forward communications is not sufficient, as the purpose is to enable direct communication between the USPTO and the inventor if necessary.

To learn more:

The correspondence address in a patent application is the address where the United States Patent and Trademark Office (USPTO) will send all official communications regarding the application. According to 37 CFR 1.33(a):

“When filing an application, a correspondence address must be set forth in either an application data sheet (§ 1.76), or elsewhere, in a clearly identifiable manner, in any paper submitted with an application filing.”

This address is crucial for ensuring that applicants receive all necessary information and notifications about their patent application.

To learn more:

The USPTO generally does not engage in double correspondence with applicants and their representatives. Specifically:

  • The Office will not correspond with both an applicant and their attorney/agent.
  • The Office will not correspond with more than one attorney/agent.
  • If double correspondence is attempted, the examiner will include form paragraph 4.01 in the next Office action.

According to MPEP 403: “Double correspondence with an applicant and their attorney, or with two representatives, will not be undertaken. See MPEP §§ 403.01(a), 403.01(b), 403.02, and 714.01(d).”

Form paragraph 4.01 states: “Applicant has appointed an attorney or agent to conduct all business before the Patent and Trademark Office. Double correspondence with an applicant and applicant’s attorney or agent will not be undertaken. Accordingly, applicant is required to conduct all future correspondence with this Office through the attorney or agent of record. See 37 CFR 1.33.”