What is an Ex Parte Reexamination Certificate?
An Ex Parte Reexamination Certificate is a document issued at the conclusion of an ex parte reexamination proceeding, except in specific cases of merger with reissue applications or inter partes reexamination proceedings. The MPEP states: An ex parte reexamination certificate is issued at the close of each ex parte reexamination proceeding in which reexamination has…
Read MoreHow are new claims presented in an ex parte reexamination certificate?
New claims in an ex parte reexamination certificate are presented as follows: They are listed numerically in a double column format The full text of each new claim is included New claims are numbered starting after the highest number of any original patent claim As stated in MPEP 2290: “Any new claim added as a…
Read MoreHow are Ex Parte Reexamination Certificates numbered?
Ex Parte Reexamination Certificates are numbered using a specific system that includes both ordinal numbers and ‘kind codes’. The MPEP explains: The ex parte reexamination certificate number will always be the patent number of the original patent followed by a two-character “kind code” suffix. The first letter of the “kind code” suffix is “B” for…
Read MoreWhat information is included in the header of an ex parte reexamination certificate?
The header of an ex parte reexamination certificate includes several key pieces of information: The patent number of the original patent The reexamination request number The effective date of the certificate The patent owner’s name The text “Ex Parte Reexamination Certificate” The number of the certificate (e.g., “1st”) As stated in MPEP 2290: “The certificate…
Read MoreWhat information is included in an Ex Parte Reexamination Certificate?
An Ex Parte Reexamination Certificate contains several key pieces of information about the reexamined patent. According to the MPEP, the certificate includes: The title “Ex Parte Reexamination Certificate” An ordinal number (e.g., “235th”) The original patent number followed by a two-character kind code The date of issuance The title of the invention The name of…
Read MoreHow are new and amended claims presented in an Ex Parte Reexamination Certificate?
The Ex Parte Reexamination Certificate has a specific format for presenting new and amended claims. The MPEP states: Any new claims will be printed in the certificate completely in italics, and any amended claims will be printed in the certificate with italics and bracketing indicating the amendments thereto. This formatting helps to clearly distinguish between…
Read MoreWhat is the significance of the effective date on an ex parte reexamination certificate?
The effective date on an ex parte reexamination certificate is significant for several reasons: It marks the date when the certificate becomes legally effective It determines when the changes to the patent claims take effect It impacts the enforcement of patent rights for the modified claims MPEP 2290 states: “The certificate is titled ‘Ex Parte…
Read MoreWhat is the difference between reexaminations ordered under 35 U.S.C. 304 and 35 U.S.C. 257?
The MPEP distinguishes between reexaminations ordered under different statutory provisions: 1. Reexaminations ordered under 35 U.S.C. 304: These are standard ex parte reexaminations The certificate states “Reexamination Request” before the filing date and number They continue an established ordinal numbering sequence 2. Reexaminations ordered under 35 U.S.C. 257: These result from a supplemental examination proceeding…
Read MoreHow are canceled claims presented in an ex parte reexamination certificate?
Canceled claims in an ex parte reexamination certificate are presented in a specific manner: They are listed numerically in a single column Only the claim numbers are shown The text of the claims is not included According to MPEP 2290: “Any claim canceled as a result of the reexamination proceeding is listed in the certificate…
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