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USPTO Kind Codes

 Summary of Usage of USPTO Kind Codes

Assigned * to Published Document

Appears in Yellow Book and Red Book Data Files ** 

Kind of document *** 

A

A1

Utility Patent Grant issued prior to January 2, 2001.

A1

A1

Utility Patent Application published on or after January 2, 2001

A2

A2

Second or subsequent publication of a Utility Patent Application

A9

A9

Correction published Utility Patent Application

Bn

Bn

Reexamination Certificate issued prior to January 2, 2001. NOTE: "n" represents a value 1 through 9.

B1

B1

Utility Patent Grant (no pre-grant publication) issued on or after January 2, 2001.

B2

B2

Utility Patent Grant (with pre-grant publication) issued on or after January 2, 2001.

Cn

Cn

Reexamination Certificate issued on or after January 2, 2001. NOTE: "n" represents a value 1 through 9 denoting the publication level.

Fn Fn 

Supplemental Examination Certificate published after September 16, 2012.  NOTE: “n” represents a value 1 through 9 denoting the publication sequence.

Jn Jn 

Post Grant Review Certificate published after September 16, 2012.  NOTE: “n” represents a value 1 through 9 denoting the publication sequence.

Kn Kn 

Inter Partes Review Certificate published after September 16, 2012.  NOTE: “n” represents a value 1 through 9 denoting the publication sequence.

On On 

Derivation Certificate published after March 16, 2013.  NOTE: “n” represents a value 1 through 9 denoting the publication sequence.

 

E

E1

Reissue Patent

Bn

Fn

Reexamination Certificate of a Reissue Patent. Certificate issued prior to January 2, 2001. NOTE: "n" represents a value 1 through 9 denoting the publication level.

Cn

Fn

Reexamination Certificate of a Reissue Patent. Certificate issued on or after January 2, 2001. NOTE: "n" represents a value 1 through 9 denoting the publication level.

H

H1

Statutory Invention Registration (SIR) Patent Documents. SIR documents began with the December 3, 1985 issue.

I1

I1

"X" Patents issued from July 31, 1790 to July 13, 1836.

I2

I2

"X" Reissue Patents issued from July 31, 1790 to July 13, 1836.

I3

I3

Additional Improvements – Patents issued between 1838 and 1861.

I4

I4

Defensive Publication – Documents issued from November 5, 1968 through May 5, 1987.

I5

I5

Trial Voluntary Protest Program (TVPP) Patent Documents

Not used

NP

Non-Patent Literature

P

P1

Plant Patent Grant issued prior to January 2, 2001

P1

P1

Plant Patent Application published on or after January 2, 2001

P2

P2

Plant Patent Grant (no pre-grant publication) issued on or after January 2, 2001.

P3

P3

Plant Patent Grant (with pre-grant publication) issued on or after January 2, 2001.

P4

P4

Second or subsequent publication of a Plant Patent Application

P9

P9

Correction publication of a Plant Patent Application

S

S1

Design Patent

Not used

X3

Trademark Application

Not used

X4

Trademark Registration

Not used

X5

Trademark Registration – Post Issuance Document

Not used

X6

Patent – Post Issuance Document

  • Adverse Decision
  • Certification of Correction
  • Dedication
  • Disclaimer

Not used

X7

Patent Assignment Document

Not used

X8

Trademark Assignment Document

Not used

XT

Test Target – (Test Data)

     
     
     
     
     


* Assigned codes were usually not provided on the face of published documents prior to January 2, 2001.

 ** Kind codes are listed in the order given in Yellow Book (Image Data File).

 *** Kind code descriptions are taken from Yellow Book.

United States Patent and Trademark Office
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Last Modified: 9/19/2013 10:39:49 AM