U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
Index to the U.S. Patent Classification System
Entries as of June 30, 2000
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 " X "
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
378 / ________ - - - -
X RAY
378 / 51______ - - - -
. . ABSORPTION
378 / 91______ - - - -
. . CIRCUITS
378 / 4_______ - - - -
. . COMPUTERIZED TOMOGRAPHY
424 / 9.4____+ .- - - -
. . CONTRAST COMPOSITIONS (IN VIVO)
378 / 70______ - - - -
. . DIFFRACTION
D24 / 158____+ - - - -
. . EQUIPMENT
430 / 967____* - - - -
. . EXPOSURE PROCESS
430 / 966____* - - - -
. . FILM
378 / 182_____ - - - -
. . . . . WITH CASSETTE
378 / 156_____ - - - -
. . FILTERS
378 / 44______ - - - -
. . FLUORESCENCE
378 / 190_____ - - - -
. . FLUOROSCOPE
378 / 34______ - - - -
. . LITHOGRAPHY
378 / 167_____ - - - -
. . PHOTOGRAPHIC
378 / 86______ - - - -
. . SCATTERING
000 / ________ - - - -
. . SCREEN
378 / 154_____ - - - -
. . . . . BUCKY GRID
250 / 483.1___ .- - - -
. . . . . FLUORESCENT OR PHOSPHORESCENT
378 / 140_____ - - - -
. . . . . TUBE WITH SECONDARY RAY
252 / 478_____ - - - -
. . SHIELD
250 / 515.1___ .- - - -
. . SHIELDS AND SHIELDING
252 / 478_____ - - - -
. . . . . COMPOSITIONS
378 / 192_____ - - - -
. . SHOE FITTING MACHINE
378 / 65______ - - - -
. . THERAPY
378 / 96______ - - - -
. . TIMER
378 / 64______ - - - -
. . TREATING
378 / 121_____ - - - -
. . TUBE
378 / 121_____ - - - -
. . TUBES
204 / 157.15_+ .- - - -
. . USED IN REACTION TO PREPARE
204 / 157.15_+ .- - - -
. . . . . INORGANIC OR ORGANIC MATERIAL
522 / 1______+ - - - -
. . USED IN REACTION TO PREPARE OR
522 / 1______+ - - - -
. . . . . TREAT SYNTHETIC RESIN OR
445 / 28______ - - - -
. . . . . MANUFACTURE
206 / 809____* - - - -
X-TYPE PACKAGE
000 / ________ - - - -
XANTHATE
008 / 122_____ - - - -
. . CELLULOSE FIBER TREATMENT
558 / 245____+ - - - -
. . ESTERS
536 / 60_____+ - - - -
. . . . . CELLULOSE
209 / 166____+ - - - -
. . FROTH FLOTATION
252 / 61______ - - - -
. . . . . COMPOSITIONS
549 / 388____+ - - - -
XANTHENES
544 / 267____+ - - - -
XANTHINES
000 / ________ - - - -
XANTHOGENATION (SEE XANTHATE)
446 / 372_____ - - - -
XANTHONES
536 / 27.8____ .- - - -
XANTHOSINE (XANTHINE RIBOSIDE)
568 / 747_____ - - - -
XENOL
423 / 262_____ - - - -
XENON
430 / 31_____+ - - - -
XEROGRAPHY(SEE PHOTOGRAPHY, ELECTRIC)
222 / DIG 1___ - - - -
. . DISPENSING DIGEST
378 / 28______ - - - -
XERORADIOGRAPHY
000 / ________ - - - -
XYLENE
585 / 446____+ - - - -
. . ALKYLATION TO PRODUCE
585 / 483____+ - - - -
. . DEALKYLATION
568 / 716____+ - - - -
XYLENOL
564 / 305____+ - - - -
XYLIDINE
084 / 404_____ - - - -
XYLOPHONE
D17 / 23______ - - - -
. . DESIGN
D21 / 410_____ - - - -
. . TOY (DESIGN)
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: 24 August 2000