Manual of U.S. Patent Classification
as of June 30, 2000

Class
441
BUOYS, RAFTS, AND AQUATIC DEVICES

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

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

Subclass		Title
ClassTitle		===> BUOYS, RAFTS, AND AQUATIC DEVICES
1		BUOY
2		. With means to call buoy to surface
3		. For mooring a vessel
4		. . Having liquid cargo transfer means
5		. . . Having swivel coupling for cargo conduit
6		. Marker buoy
7		. . Having means to release buoy upon submergence
8		. . . Water soluble or water weakened member
9		. . . Gas assisted
10		. . . Responsive to hydrostatic pressure
11		. . With signalling device
12		. . . Audible
13		. . . Illuminating
14		. . . . By combustion of fluid
15		. . . . . Fluid produced by chemical reaction with water
16		. . . . Electric light
17		. . . . . Having water activated switch
18		. . . . . Having water activated battery
19		. . . Smoke producing
20		. . . Reflecting means
21		. Having means to control attitude or position
22		. . Fluid reaction surface
23		. . Tether
24		. . . Having playout means
25		. . . . Having means to control playout
26		. . . . Reel for tether
27		. . . . Having seat for buoy
28		. . Having ballast means
29		. . . Variable ballast
30		. Inflatable
31		. . Having chemical reactor to produce gas
32		. Container type
33		. . With means to release transponder, sensor, etc.
34		. . Storm oil distributor
35		RAFTS
36		. With signal device
37		. Having water reactant stabilizing means
38		. With shelter
39		. Having boarding aid
40		. Inflatable
41		. . Having inflation valve means
42		. . Having storage container for raft
43		. Having centrally located suspended basket
44		. Columnar flotation member
45		. . Hollow
46		. . . Barrel or drum
47		. Formed from log or other product
48		. . Booming
49		. . Cribbing
50		. . Coupling means
51		. . . Dog
52		. . . Clamp
53		. . . Transverse rigid member
54		. . . Encircling flexible member
55		SWIMMING AID TO INCREASE STROKE EFFICIENCY
56		. Hand attached, held, or worn
57		. . Having finger stalls (e.g., gloves)
58		. . Secured to hand by strap
59		. Arm attached
60		. Leg attached
61		. Foot attached
62		. . Repositioned by biasing means
63		. . With lock or latch
64		. . Flipper
65		WATER SKIMMING OR WALKING DEVICE
66		. Inflatable
67		. Circular
68		. Water ski
69		. . Ski tow handle
70		. . Ski binding
71		. . With rooster tail producing means
72		. . With seat
73		. . Having connecting means
74		. Surfboard
75		. With lashing
76		. Water walking device (e.g., water shoes)
77		. . Having pivoted traction flap
78		. . Spheroid or wheel-like device encircling walker
79		. Having stabilizing surface
80		WATER RESCUE OR LIFE PROTECTING APPARATUS
81		. Tossable apertured member (e.g., ring)
82		. For use over ice
83		. Air-sea rescue device
84		. Lifeline
85		. . Having line propelling means
86		. Buoyant shark screen encircling user
87		. Passenger enclosing bouyancy device
88		. Personal flotation device
89		. . With signal means
90		. . With mechanical inflation means
91		. . . By pump
92		. . . By compressed gas means
93		. . . . With puncturing means
94		. . . . . Lever actuated
95		. . . . . Actuated by water softened or soluble member
96		. . . . With control valve
97		. . . . . Actuated by water softened or soluble member
98		. . . By gas generation from chemical reaction
99		. . . . With manually operated valve
100		. . . . With soluble or deformable element
101		. . . . . With cutting, punching, or striking means
102		. . Body suit
103		. . . Full length
104		. . . . With hood
105		. . . . . With mask
106		. . For torso
107		. . . With sleeve
108		. . . With buoyancy means substantially encircling the torso
109		. . . . And attached hip boot
110		. . . . And leg or foot strap
111		. . . . And support passing over the shoulder
112		. . . . . Having buoyancy means
113		. . . . Buoyancy means is a continuous member
114		. . . With buoyancy means on the back
115		. . . . And front
116		. . . . . And shoulder
117		. . . With buoyancy means on the front
118		. . . . And shoulder
119		. . . With buoyancy means on the side
120		. . Trunks or shorts
121		. . Suspender
122		. . Arm encircling means
123		. . Neck encircling means
124		. . Head gear
125		. Convertible use article
126		. . Seating means
127		. . . Cushion
128		. . Berth
129		BODY SUPPORTING BUOYANT DEVICE
130		. With seat
131		. . Annular buoyant member
132		. . U-shaped buoyant member
133		BUOYANCY PROVIDING ATTACHMENT FOR PIPE, LOG, OR LINE
134		. Float for log
135		BUOYANCY UNDERWATER VIEWING DEVICE
136		MISCELLANEOUS

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tel: (703) 306-2600
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Last Modified: 6 October 2000