How 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 are WIPO Standard ST.16 codes (kind codes)?
WIPO Standard ST.16 codes, also known as kind codes, are alphanumeric identifiers used to distinguish different types of patent documents and their publication levels. According to MPEP 901.04(a): WIPO Standard ST.16 codes (kind codes) include a letter, and in many cases a number, used to distinguish the kind of patent document (e.g., publication of an…
Read MoreWhat are the kind codes for U.S. patent publications?
U.S. patent publications use specific kind codes to indicate the type and status of a document. According to MPEP 901.04(a): A1: Patent Application Publication A2: Republished Patent Application Publication A9: Corrected Patent Application Publication B1: Utility Patent B2: Utility Patent (issued after reexamination) C1, C2, C3, etc.: Reexamination Certificate E1: Reissue Patent H1: Statutory Invention…
Read MoreHow do kind codes differ between U.S. and foreign patent documents?
Kind codes for U.S. and foreign patent documents differ in their specific designations and meanings. The MPEP 901.04(a) states: “It is noted that many foreign patent documents, as well as U.S. patent documents, are not sent to a printer for printing of the second level kind codes. The kind codes printed on these documents are…
Read MoreHow do kind codes differ between PCT and U.S. national stage applications?
Kind codes for PCT (Patent Cooperation Treaty) applications and U.S. national stage applications differ in their usage and meaning. The MPEP 901.04(a) provides the following information: For PCT applications: “A1” – PCT application published with the international search report “A2” – PCT application published without the international search report “A3” – PCT search report published…
Read MoreAre there any more FAQs about MPEP 901.04(a) – Kind Codes?
No more FAQs can be generated based on the content from MPEP 901.04(a) – Kind Codes. The existing FAQs have comprehensively covered all relevant aspects of the topic, including the definition, purpose, examples, placement, and interpretation of kind codes for both U.S. and foreign patent documents. To learn more: kind codes patent documents MPEP patent…
Read MoreWhat are Kind Codes in patent documents and how are they used?
Kind Codes, also known as WIPO Standard ST.16 codes, are letters and numbers used to distinguish different types of patent documents and their publication levels. The MPEP states: “WIPO Standard ST.16 codes (kind codes) include a letter, and in many cases a number, used to distinguish the kind of patent document (e.g., publication of an…
Read MoreHow have Kind Codes changed for U.S. patent documents since 2001?
The United States Patent and Trademark Office (USPTO) began using WIPO Standard ST.16 codes (Kind Codes) on January 2, 2001. This change brought about several modifications to the coding system: New codes were introduced for patent application publications (A1, A2, A9) Codes for granted patents were changed (B1, B2) Specific codes were assigned to plant…
Read MoreWhat are the kind codes for European Patent Office (EPO) publications?
The European Patent Office (EPO) uses specific kind codes for different types of patent publications. According to MPEP 901.04(a): “A1” is used for European patent applications published with the European search report. “A2” is used for European patent applications published without the European search report. “A3” is used for European search reports published separately from…
Read MoreWhat do the kind codes ‘C1’, ‘C2’, and ‘C3’ represent in U.S. patent documents?
The kind codes ‘C1’, ‘C2’, and ‘C3’ are used for specific types of U.S. patent documents. According to MPEP 901.04(a): “C1” – Reexamination certificate issued after the first reexamination proceeding “C2” – Reexamination certificate issued after the second reexamination proceeding “C3” – Reexamination certificate issued after the third reexamination proceeding These kind codes are important…
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