U.S. PATENT AND TRADEMARK OFFICE
Information Products Division
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Index to the U.S. Patent Classification System
Entries as of June 30, 2000

[Explanation of Data]
Links to Other Index Entries Beginning With:
A B C Co D E F G H I J K L M N O P Q R S Sp T U V W X Y Z

Index Entries Beginning With " Y "


The Manual of U.S. Patent Classification may be accessed by clicking on the classification, below.
( please note that links for some subclasses may not be available )
--------------------------------------------------------------

Class / Subclass - - - - Index Term

089 / 1.1_____ .- - - - Y GUNS
000 / ________ - - - - YACHT SEE SHIP
070 / 492_____ - - - - YALE TM LOCK
000 / ________ - - - - YARD
104 / 26.1___+ .- - - - . . RAILWAY CAR
114 / 95_____+ - - - - . . SHIP SPAR
033 / 483____+ - - - - . . STICK
000 / ________ - - - - YARN SEE THREAD
446 / 372____+ - - - - . . DOLL
008 / 155____+ - - - - . . FLUID TREATMENT OF PACKAGE
101 / 172_____ - - - - . . PRINTING ON
057 / ________ - - - - . . STRUCTURE
073 / 160_____ - - - - . . TESTING
000 / ________ - - - - YEAST (SEE ALSO FUNGI)
435 / 283.1__+ .- - - - . . APPARATUS
435 / 440____+ - - - - . . CELL MUTATION, GENETIC ENGINEERING
000 / ________ - - - - . . COMPOSITIONS
424 / 93.1___+ .- - - - . . . . . BODY TREATING
426 / 18_____+ - - - - . . . . . BREAD MAKING WITH
426 / ________ - - - - . . . . . EDIBLE PRODUCTS
426 / 18_____+ - - - - . . . . . . . BREAD MAKING
435 / 804____* - - - - . . . . . . . SINGLE CELL PROTEIN
435 / ________ - - - - . . FERMENTING CARBOHYDRATES BY
435 / 243____+ - - - - . . PRODUCTS, MICROORGANISM PER SE
435 / 183_____ - - - - . . . . . ENZYME, PROCESSES FOR
435 / 174____+ - - - - . . . . . NONFERMENT MATERIAL COMBINED
435 / 188_____ - - - - . . . . . . . FOR STABILIZING
435 / 255.1__+ .- - - - . . PROPAGATION
435 / 283.1__+ .- - - - . . . . . APPARATUS
435 / 283.1__+ .- - - - . . . . . NONFERMENT MATERIAL COMBINED
435 / 255.1__+ .- - - - . . YEAST, PER SE, CULTURE METHODS
435 / 254.2__+ .- - - - . . . . . TRANSFORMANTS
435 / 7.31____ .- - - - . . MEASURING AND TESTING
426 / 583_____ - - - - YOGHURT
546 / 53______ - - - - YOHIMBINE
000 / ________ - - - - YOKE
000 / ________ - - - - . . ANIMAL DRAFT APPLIANCE
278 / 119____+ - - - - . . . . . NECK YOKE
278 / 51______ - - - - . . . . . THILL
002 / 122_____ - - - - . . APPAREL
384 / 374_____ - - - - . . AXLE LUBRICATOR
215 / 237____+ - - - - . . BOTTLE CLOSURE
279 / 19.1___+ .- - - - . . CHUCK
D30 / 137____+ - - - - . . DRAFT
294 / 91______ - - - - . . GRAPPLE
054 / 3_______ - - - - . . HARNESS
054 / 77______ - - - - . . . . . OX
416 / 244R____ - - - - . . MOTOR FLUID CURRENT
285 / 274_____ - - - - . . PIPE JOINT
000 / ________ - - - - . . RAILWAY
104 / 142____+ - - - - . . . . . CONDUIT
213 / 47_____+ - - - - . . . . . DRAFT APPLIANCE CUSHIONED
213 / 67R____+ - - - - . . . . . DRAW BAR
238 / 314_____ - - - - . . . . . TRACK FASTENER
105 / 214_____ - - - - . . . . . TRUCK PLATFORM
000 / ________ - - - - . . WATCH
368 / 199_____ - - - - . . . . . LEVER SET
368 / 197____+ - - - - . . . . . PENDANT SET
081 / 152_____ - - - - . . WRENCH SHANK GRIP
423 / 21.1___+ .- - - - YTTERIUM INORGANIC RECOVERY

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: 24 August 2000