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Search for Atypical Patent Documents?

TOPIC: There are several types of U.S. patent numbers that do not conform to the standard of a seven-digit number beginning with 5, 6, or 7. Such patent numbers are valid, and can be searched in a variety of databases on Dialog. Following are examples for Design Patents, Plant Patents, Reissue Patents, Statutory Invention Registrations (SIR), Defensive Publications and U.S. Government Published Patent Applications (NTIS listings). You can click the links above to see a step-by-step illustration of each search.

Databases that cover atypical patent documents include: CLAIMS/U.S. Patents (File 340), U.S. Patents Fulltext (File 652, 654), INPADOC/Family and Legal Status (File 345) and Derwent World Patents Index (File 350, 351, 352).

Search strategies differ depending on the database. Click the link to see a step-by-step example of each atypical patent document search.

  • Design Patents — to locate a design patent, search using the Publication Number (PN=) prefix, the U.S. country code, a space and the letter D, followed by a six-digit number (e.g., S PN=US D552808).

    To locate all design patents in CLAIMS and U.S. Patents Fulltext use the Document Type field (DT=) and DESIGN (e.g., S DT=DESIGN). In INPADOC, search using the Patent Country prefix (PC=), the country code followed by a space and the kind code S1 (e.g., SELECT PC=US S1).

  • Plant Patents — to find a plant patent in CLAIMS and U.S. Patents Fulltext, search using the Publication Number (PN=), the U.S. country code, a space, and the letters PP, followed by a five-digit number (e.g., S PN=US PP03996)(fill with leading zeroes if needed). In INPADOC, enter the U.S. country code a space, and the letters PP, followed by a four or five-digit number (e.g., S PN=US PP3996) (no leading zeroes).

    To find all the plant patents in CLAIMS and U.S. Patents Fulltext, use the Document Type field (DT=) and PLANT (e.g., S DT=PLANT). In INPADOC, search using the Patent Country prefix (PC=), the U.S. country code, followed by a space and the kind code P truncated with the question mark (?) (e.g., S PC=US P?).

  • Reissue Patents — To locate a reissue patent, search using the publication number (PN=), the U.S. country code, a space, and the letters RE, followed by a five-digit number (e.g., S PN=US RE31794).

    To find all the reissue patents in CLAIMS and U.S. Patents Fulltext, search Document Type (DT=) followed by REISSUE. In Derwent databases search the Patent Country prefix (PC=), the U.S. country code, a space, then the kind code E (e.g., S PC=US E). In INPADOC enter the U.S. country code, a space, then the kind code E truncated (e.g., S PC=US E?).

  • Statutory Invention Registration (SIR) — a publication of an invention by the United States Patent and Trademark Office (USPTO). The publication is made at the request of the applicant (i.e. inventor(s) or assignee(s)). Historically, statutory invention registrations were used by applicants for publishing patent applications they no longer felt they could get patents on. By publishing the patent applications, they helped insure that the inventions were in the public domain and no one else could subsequently get a patent on them. As of the 1999 American Inventors Protection Act, however, most patent applications filed in the U.S. have been published 18 months after they were filed. These published patent applications serve a similar purpose to a Statutory Invention Registration. Once an application is published, an inventor need only let their application go abandoned in order to give up their right to a patent and dedicate the invention to the public. A Statutory Invention Registration (SIR) is not a patent. An inventor wishing to prevent others from obtaining a patent on their invention may request, at any time during the pendency of their complete application, that the specification and drawings be published as a SIR. Upon publication, the inventor waives all patent rights to the subject matter claimed in the statutory invention.

    To find a SIR in CLAIMS and U.S. Patents Fulltext, search using the publication number (PN=), the U.S. country code, a space, and the letter H, followed by a one-to-six-digit number with no leading zeros (e.g., ; S PN=US H1005); also enter the U.S. country code, a space and the letter H, followed by one-to-six-digit number, including leading zeros (e.g., S PN=US H002122). Try it both with leading zeros and without. In INPADOC and Derwent databases, enter the U.S. country code, a space, and the letter H, followed by a one-to-six-digit number with no leading zeroes (e.g., S PN=US H1005).

    To find all the statutory invention disclosures in CLAIMS, enter the document type (DT=) and STATUTORY; in U.S. Patents Fulltext enter DT=SIR UTILITY. In Derwent databases, use the U.S. country code with the Patent Country prefix (PC=) followed by a space, then the kind code H (e.g., S PC=US H). In INPADOC use truncation (e.g., S PC=US H?).

  • Defensive Publication — an intellectual property strategy used to prevent another party from obtaining a patent on a product, apparatus or method. The strategy consists in disclosing an enabling description and/or drawing of the product, apparatus or method so that it enters the public domain and becomes prior art. Therefore, the defensive publication of perhaps otherwise patentable information may work to defeat the novelty of a subsequent patent application.

    To find defensive publications or defensive disclosures, enter the U.S. country code, a space, and the letter T, followed by a six-digit number (e.g., S PN=US T101103).

    To find all the defensive publications in CLAIMS and U.S. Patents Fulltext, use document type (DT=) followed by DEFENSIVE (e.g., DEFENSIVE). In INPADOC, search using the Patent Country prefix (PC=), the U.S. country code followed by a space, then kind code I4 (e.g., S PC=US I4). In the Derwent databases, enter the U.S. country code with the Patent Country prefix (PC=), the U.S. country code followed by a space, then the kind code H (e.g., S PC=US H).

  • U.S. Government Published Patent Applications — can be found in Derwent World Patents Index® (File 351, 352 in Japan) and NTIS (File 6). To search DWPI, enter the U.S. country code, a space, the letter N and the seven-digit application series number (e.g., S PN=US N7072455). In NTIS the format for the application numbers in the file does not correspond to the standard format used for the Application Number field (AN=) in Dialog patent files. Instead, it is indexed in the Report Number field (RN=) and the format is not standardized. For example, U.S. application 07/072455 (series 07, serial number 072455) is indexed as "RN=PAT-APPL-7-072 455" but other numbers may be formatted differently. EXPANDing on various number formats in the RN= field is recommended.

    To find all the NTIS-published invention applications, search using the Patent Country prefix (PC=) and enter the U.S. country code, followed by a space, then the kind code N (e.g., S PC=US N).

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Stock #: 54148; Last modified: 14 Sep 2011



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