Patent Law FAQ

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

Here’s the complete FAQ:

c Expand All C Collapse All

MPEP 200 - Types and Status of Application; Benefit and Priority (4)

A reissue application can be used to correct various types of defects in an unexpired patent. While the MPEP 201.05 doesn’t provide an exhaustive list in this section, it does state that a reissue application is for “a patent to take the place of an unexpired patent that is defective.” Common defects that can be addressed through reissue include:

  • Errors in the specification or drawings
  • Overly broad or narrow claims
  • Failure to claim priority correctly
  • Inventorship issues

For a more comprehensive list and detailed explanations of correctable defects, refer to MPEP Chapter 1400, which provides a thorough treatment of reissue applications and the types of defects they can address.

To learn more:

A reissue application is a type of patent application used to correct errors in an already issued patent. According to MPEP 201:

“An application for reissue of a patent is an application for a new patent to correct an error in an existing patent.”

Reissue applications are filed when the original patent is wholly or partly inoperative or invalid due to defective specifications, drawings, or by claiming more or less than the patentee had the right to claim. They must be filed by the original patent owner and are subject to specific requirements outlined in 35 U.S.C. 251.

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue application, visit: reissue application.

Reissue applications are used to correct errors in already issued patents. According to MPEP 201:

‘An application for reissue is made by the patentee when the patent is, through error without any deceptive intention, deemed wholly or partly inoperative or invalid, by reason of a defective specification or drawing, or by reason of the patentee claiming more or less than he had a right to claim in the patent.’

Key points about reissue applications:

  • They are filed under 35 U.S.C. 251.
  • They can be used to broaden or narrow the scope of patent claims.
  • There are time limitations for broadening reissues (within two years from the grant of the original patent).

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue application, visit: reissue application.

MPEP 201.01 briefly mentions reissue applications as one of the types of national applications. Specifically, it states:

‘National applications include original applications and reissue applications (filed under 35 U.S.C. 251).’

Reissue applications are a specialized type of patent application used to correct errors in an already issued patent. They are governed by 35 U.S.C. 251, which allows a patentee to apply for a reissue of their patent if it is deemed to be wholly or partly inoperative or invalid due to certain types of errors.

For more detailed information on reissue applications, refer to MPEP 1400 – Correction of Patents.

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue applications, visit: reissue applications.

MPEP 200 - Types and Status of Application; Benefit and Priority Claims (1)

A reissue application is a type of application used to correct an error in an issued patent that renders the patent wholly or partly inoperative or invalid. It is governed by 35 U.S.C. 251 and 37 CFR 1.171-1.179. Reissue applications are typically filed when the original patent claims are too narrow or too broad, or when there are other errors that affect the scope or validity of the patent. For more information on reissue applications, refer to MPEP 1401.

MPEP 201 - Types of Applications (4)

A reissue application is a type of patent application used to correct errors in an already issued patent. According to MPEP 201:

“An application for reissue of a patent is an application for a new patent to correct an error in an existing patent.”

Reissue applications are filed when the original patent is wholly or partly inoperative or invalid due to defective specifications, drawings, or by claiming more or less than the patentee had the right to claim. They must be filed by the original patent owner and are subject to specific requirements outlined in 35 U.S.C. 251.

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue application, visit: reissue application.

A reissue application is a type of application used to correct an error in an issued patent that renders the patent wholly or partly inoperative or invalid. It is governed by 35 U.S.C. 251 and 37 CFR 1.171-1.179. Reissue applications are typically filed when the original patent claims are too narrow or too broad, or when there are other errors that affect the scope or validity of the patent. For more information on reissue applications, refer to MPEP 1401.

Reissue applications are used to correct errors in already issued patents. According to MPEP 201:

‘An application for reissue is made by the patentee when the patent is, through error without any deceptive intention, deemed wholly or partly inoperative or invalid, by reason of a defective specification or drawing, or by reason of the patentee claiming more or less than he had a right to claim in the patent.’

Key points about reissue applications:

  • They are filed under 35 U.S.C. 251.
  • They can be used to broaden or narrow the scope of patent claims.
  • There are time limitations for broadening reissues (within two years from the grant of the original patent).

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue application, visit: reissue application.

MPEP 201.01 briefly mentions reissue applications as one of the types of national applications. Specifically, it states:

‘National applications include original applications and reissue applications (filed under 35 U.S.C. 251).’

Reissue applications are a specialized type of patent application used to correct errors in an already issued patent. They are governed by 35 U.S.C. 251, which allows a patentee to apply for a reissue of their patent if it is deemed to be wholly or partly inoperative or invalid due to certain types of errors.

For more detailed information on reissue applications, refer to MPEP 1400 – Correction of Patents.

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue applications, visit: reissue applications.

Patent Law (5)

A reissue application can be used to correct various types of defects in an unexpired patent. While the MPEP 201.05 doesn’t provide an exhaustive list in this section, it does state that a reissue application is for “a patent to take the place of an unexpired patent that is defective.” Common defects that can be addressed through reissue include:

  • Errors in the specification or drawings
  • Overly broad or narrow claims
  • Failure to claim priority correctly
  • Inventorship issues

For a more comprehensive list and detailed explanations of correctable defects, refer to MPEP Chapter 1400, which provides a thorough treatment of reissue applications and the types of defects they can address.

To learn more:

A reissue application is a type of patent application used to correct errors in an already issued patent. According to MPEP 201:

“An application for reissue of a patent is an application for a new patent to correct an error in an existing patent.”

Reissue applications are filed when the original patent is wholly or partly inoperative or invalid due to defective specifications, drawings, or by claiming more or less than the patentee had the right to claim. They must be filed by the original patent owner and are subject to specific requirements outlined in 35 U.S.C. 251.

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue application, visit: reissue application.

A reissue application is a type of application used to correct an error in an issued patent that renders the patent wholly or partly inoperative or invalid. It is governed by 35 U.S.C. 251 and 37 CFR 1.171-1.179. Reissue applications are typically filed when the original patent claims are too narrow or too broad, or when there are other errors that affect the scope or validity of the patent. For more information on reissue applications, refer to MPEP 1401.

Reissue applications are used to correct errors in already issued patents. According to MPEP 201:

‘An application for reissue is made by the patentee when the patent is, through error without any deceptive intention, deemed wholly or partly inoperative or invalid, by reason of a defective specification or drawing, or by reason of the patentee claiming more or less than he had a right to claim in the patent.’

Key points about reissue applications:

  • They are filed under 35 U.S.C. 251.
  • They can be used to broaden or narrow the scope of patent claims.
  • There are time limitations for broadening reissues (within two years from the grant of the original patent).

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue application, visit: reissue application.

MPEP 201.01 briefly mentions reissue applications as one of the types of national applications. Specifically, it states:

‘National applications include original applications and reissue applications (filed under 35 U.S.C. 251).’

Reissue applications are a specialized type of patent application used to correct errors in an already issued patent. They are governed by 35 U.S.C. 251, which allows a patentee to apply for a reissue of their patent if it is deemed to be wholly or partly inoperative or invalid due to certain types of errors.

For more detailed information on reissue applications, refer to MPEP 1400 – Correction of Patents.

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue applications, visit: reissue applications.

Patent Procedure (5)

A reissue application can be used to correct various types of defects in an unexpired patent. While the MPEP 201.05 doesn’t provide an exhaustive list in this section, it does state that a reissue application is for “a patent to take the place of an unexpired patent that is defective.” Common defects that can be addressed through reissue include:

  • Errors in the specification or drawings
  • Overly broad or narrow claims
  • Failure to claim priority correctly
  • Inventorship issues

For a more comprehensive list and detailed explanations of correctable defects, refer to MPEP Chapter 1400, which provides a thorough treatment of reissue applications and the types of defects they can address.

To learn more:

A reissue application is a type of patent application used to correct errors in an already issued patent. According to MPEP 201:

“An application for reissue of a patent is an application for a new patent to correct an error in an existing patent.”

Reissue applications are filed when the original patent is wholly or partly inoperative or invalid due to defective specifications, drawings, or by claiming more or less than the patentee had the right to claim. They must be filed by the original patent owner and are subject to specific requirements outlined in 35 U.S.C. 251.

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue application, visit: reissue application.

A reissue application is a type of application used to correct an error in an issued patent that renders the patent wholly or partly inoperative or invalid. It is governed by 35 U.S.C. 251 and 37 CFR 1.171-1.179. Reissue applications are typically filed when the original patent claims are too narrow or too broad, or when there are other errors that affect the scope or validity of the patent. For more information on reissue applications, refer to MPEP 1401.

Reissue applications are used to correct errors in already issued patents. According to MPEP 201:

‘An application for reissue is made by the patentee when the patent is, through error without any deceptive intention, deemed wholly or partly inoperative or invalid, by reason of a defective specification or drawing, or by reason of the patentee claiming more or less than he had a right to claim in the patent.’

Key points about reissue applications:

  • They are filed under 35 U.S.C. 251.
  • They can be used to broaden or narrow the scope of patent claims.
  • There are time limitations for broadening reissues (within two years from the grant of the original patent).

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue application, visit: reissue application.

MPEP 201.01 briefly mentions reissue applications as one of the types of national applications. Specifically, it states:

‘National applications include original applications and reissue applications (filed under 35 U.S.C. 251).’

Reissue applications are a specialized type of patent application used to correct errors in an already issued patent. They are governed by 35 U.S.C. 251, which allows a patentee to apply for a reissue of their patent if it is deemed to be wholly or partly inoperative or invalid due to certain types of errors.

For more detailed information on reissue applications, refer to MPEP 1400 – Correction of Patents.

For more information on Patent correction, visit: Patent correction.

For more information on Patent errors, visit: Patent errors.

For more information on reissue applications, visit: reissue applications.