Manual of Classification

CLAIMS CLASS contains the tides of the classes and subclasses of the USPTO Manual of Classification. It can be searched by tide words to locate pertinent classes to use ia the bibliographic files and by class/subclass numbers to identify the classification assigned to a known patent. It is updated aimuaHy. 

CASSIS USPTO USPTO Office of Electronic Data Conversion and Dissemination CASSIS, the Classification and Search Support Information System of the USPTO, comprises three subfiles CASSIS/BIB, bibHographic information for utiHty patents from 1969 and for others from 1977 CASSIS/CLASS, USPTO classification by patent number of class/subclass CASSIS/ASSIST, iadex to U.S. Manual of Classification U.S. Manual of Classification, Class Definitions IPC, U.S. Classification Concordance Manual of Patent Examining Procedure Attorneys/ Agents Roster, etc... 

Manual of Classification, U.S. Department of Commerce, Patent and Trademark Office, Washington, D.C. revised regulady. 

Manual code system, in searching patent literature, 18 223-225 Manual of Classification, 18 209 Manuals of Policies and Procedures (MAPPs), 13 688 Manufactured carbon, 4 735 Manufactured fibers, 11 165, 174-175 24 613-614, 616-618. See also Regenerated fibers Synthetic fibers olefin, 11 231-242 regenerated cellulose, 11 247 Manufactured graphite, 4 735 Manufactured products, nanotechnology and, 17 44-45 Manufactured water, 26 96 Manufacturing... 

WHO (1980) International classification of impairments, disabilities and handicaps A manual of classification relating to the consequences of disease. Geneva, World Health Organization. 

The bible of this system is the Manual of Classification of Patents, published by the Patent Office. Supplementing the manual are the class and subclass definitions contained in the Classification Bulletins, also obtainable from the Patent Office. 

This can be done in a number of ways. According to what might be called the fundamental way, the first step is to find subclass numbers by looking up the subject and related terms in the index to the Manual of Classification. But occasionally no relevant term can be located in this index. It is then necessary to scan the class titles under the appropriate one of the five main groups of classes and then the subclass titles under any class that seems promising. 

The Patent Office has available at the Scientific Library typewritten copies of a manual of classification of the French Patent Office (191), In this manual. Class XIV, Chemical arts, has the following subclasses ... 

Lovett, G. A., Manual of Classification of the German Patent Office, Government Printing Office, Washington, 1911. 

The United States Patent Oflfice classifies its patents into some 350 main classes, each of which is divided into many subclasses. There are now about 45,000 of these subclasses. Titles of the classes and subclasses are listed in the "Manual of Classification of Patents (54). Revision of this classification is a continuous process. As classes are revised and new definitions for them are written, these are pubhshed first in the Official Gazette of the U. S. Patent Office and later in the Classification Bulletin issued at intervals by the Patent Office. 

To search the United States patent art, therefore, the first step is to examine the "Manual of Classification, together with the definitions furnished in the Classification Bulletins in order to determine, if possible, which classes will contain the art to be examined. The only classified sets of patents available to the public in this country are in the Patent Office search room in Washington. Some companies, therefore, maintain partial sets in their own libraries. These may be readily maintained by subscribing to the classes of special interest. In this way, copies of the patents classified by the Patent Office into these classes are automatically received. 

U. S. Patent Office, Manual of Classification of Patents and Index to Classification, Revised... 

The U. S. Patent Office provides several guides for obtaining those patents of interest. These are the Manual of Classification of Patents (117), the index to said manual, plus a series of classification bulletins which define the classes and subclasses listed in the manual. Once having determined the subclasses of interest, one may obtain from the Patent Office, at a charge of about 20 cents a page, separate numerical lists of both the original references and cross references in each subclass. Furthermore, the Patent Office will supply these lists of subclasses and cross-reference lists upon receiving a request which fully describes the subject matter of interest. The subclasses of Class 260, The Chemistry of Carbon Compounds, are the subclasses of main interest, and these have been recently revised. The definitions for Class 260 are in Classification Bulletin No. 200 (116). It may be noted at this time that a revised copy of this bulletin, as well as a new index to the Classification Manual, is scheduled for publication in the near future. 

United States Patent Office, Department of Commerce, Manual of Classification of Pat-... 

United States Patent and Trademark Office, www.uspto.gov (all accessed August 9, 2010). Official Web site of the U.S. Patent and Trademark Office. Recently redesigned to highlight patent and trademark searching along with services for inventors. Also available online is the U.S. Manual of Classification, www.uspto.gov/web/patents/classification/, listing class schedules and linked classification definitions. This is updated regularly. 

The United States Patent Office (Washington 25, D.C.) issues a number of publications essential for locating and identifying United States patents. The Manual of Classification is a detailed outline of the classes and divisions concerned with United States patents. These are arranged both alphabetically by subject and numerically. A detailed classification is provided for each class, many of which are of chemical interest. 

Providing the number or the name of the patentee or the date of issue of a U.S. patent is known the abridgment can be traced fairly easily in the Official Gazette. For a subject search it is necessary to consult the Manual of Classification to select the relevant class number and then scrutinize the weekly classification index. To find an entry in the Official Gazette where only the patent number is known, it is essential first to get some idea of the date of issue. 

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