U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
Patents classified in a subclass may be accessed by either clicking on
the subclass number
preceding each subclass definition or on the
" " 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
Last Modified: 6 October 2000