U.S. PATENT AND TRADEMARK OFFICE
Information Products Division
[Manual of Classification, Class Listing] [Manual of Classification, Class 976] [Classification Definitions, Class Listing] [USPTO Home Page]

U.S. Patent Classification System - Classification Definitions
as of June 30, 2000

[Explanation of Data]

Patents classified in a subclass may be accessed by either clicking on the subclass number
preceding each subclass definition or on the " [Patents] " icon, below.
( please note that patents for some subclasses may not be available )

For classification search strategies, please refer to the Classification Index Explanation of Data web page.

(definitions have been obtained from the Patents ASSIST CD-ROM which is produced by the U.S. Patent and Trademark Office Electronic Products Branch)


Class 976

NUCLEAR TECHNOLOGY


Class Definition:
Note the following for Class 976:
(A) Class 976 is used for optional searching.
(B) Digests 1-445 are established in direct correspondence to selected portions of the European Patent Office
Classification (EPOC), which itself is an expansion on the International Patent Classification (IPC). Each Digest represents a single "subgroup" from the EPOC. All "subgroups" and "main groups" within EPOC Class G21, NUCLEAR PHYSICS, NUCLEAR ENGINEERING have been included. Note: EPOC "subclasses" (e.g., G21B, G21C, etc.) have not been represented here by Digests. The specific EPOC "subgroup" for each Digest is presented within square brackets at the end of each title in the Class schedule. At the time of introduction of these digests, they contain only U.S. patents as classified by EPO personnel.
(C) Digests 1-445 are presented as part of a trial program to learn whether the use of multiple diverse classifications of essential the same documents would be beneficial to examiners and to learn what the benefits might be.


Information Products Division -- Contacts

Questions regarding this report should be directed to:

U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov


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Last Modified: 6 October 2000