| Class Number |
Class Name |
No. of Patents |
| 441/129 |
Body supporting buoyant device |
223 |
| 441/130 |
With seat |
109 |
| 441/131 |
Annular buoyant member |
75 |
| 441/132 |
U-shaped buoyant member |
34 |
| 441/133 |
Buoyancy providing attachment for pipe, log, or line |
88 |
| 441/134 |
Float for log |
0 |
| 441/135 |
Buoyancy underwater viewing device |
44 |
| 441/1 |
Buoy |
96 |
| 441/32 |
Container type |
27 |
| 441/34 |
Storm oil distributor |
1 |
| 441/33 |
With means to release transponder, sensor, etc. |
45 |
| 441/3 |
For mooring a vessel |
156 |
| 441/4 |
Having liquid cargo transfer means |
113 |
| 441/5 |
Having swivel coupling for cargo conduit |
161 |
| 441/21 |
Having means to control attitude or position |
47 |
| 441/22 |
Fluid reaction surface |
29 |
| 441/28 |
Having ballast means |
47 |
| 441/29 |
Variable ballast |
54 |
| 441/23 |
Tether |
79 |
| 441/24 |
Having playout means |
16 |
| 441/25 |
Having means to control playout |
39 |
| 441/27 |
Having seat for buoy |
7 |
| 441/26 |
Reel for tether |
60 |
| 441/30 |
Inflatable |
60 |
| 441/31 |
Having chemical reactor to produce gas |
12 |
| 441/6 |
Marker buoy |
108 |
| 441/7 |
Having means to release buoy upon submergence |
30 |
| 441/9 |
Gas assisted |
8 |
| 441/10 |
Responsive to hydrostatic pressure |
25 |
| 441/8 |
Water soluble or water weakened member |
16 |
| 441/11 |
With signalling device |
71 |
| 441/12 |
Audible |
9 |
| 441/13 |
Illuminating |
30 |
| 441/14 |
By combustion of fluid |
2 |
| 441/15 |
Fluid produced by chemical reaction with water |
1 |
| 441/16 |
Electric light |
49 |
| 441/18 |
Having water activated battery |
7 |
| 441/17 |
Having water activated switch |
9 |
| 441/20 |
Reflecting means |
14 |
| 441/19 |
Smoke producing |
4 |
| 441/2 |
With means to call buoy to surface |
40 |
| 441/136 |
Miscellaneous |
39 |
| 441/35 |
Rafts |
34 |
| 441/44 |
Columnar flotation member |
6 |
| 441/45 |
Hollow |
12 |
| 441/46 |
Barrel or drum |
2 |
| 441/47 |
Formed from log or other product |
4 |
| 441/48 |
Booming |
1 |
| 441/50 |
Coupling means |
3 |
| 441/52 |
Clamp |
1 |
| 441/51 |
Dog |
1 |
| 441/54 |
Encircling flexible member |
1 |
| 441/53 |
Transverse rigid member |
0 |
| 441/49 |
Cribbing |
1 |
| 441/39 |
Having boarding aid |
20 |
| 441/43 |
Having centrally located suspended basket |
5 |
| 441/37 |
Having water reactant stabilizing means |
10 |
| 441/40 |
Inflatable |
182 |
| 441/41 |
Having inflation valve means |
75 |
| 441/42 |
Having storage container for raft |
38 |
| 441/38 |
With shelter |
38 |
| 441/36 |
With signal device |
11 |
| 441/55 |
Swimming aid to increase stroke efficiency |
31 |
| 441/59 |
Arm attached |
29 |
| 441/61 |
Foot attached |
61 |
| 441/64 |
Flipper |
244 |
| 441/62 |
Repositioned by biasing means |
15 |
| 441/63 |
With lock or latch |
16 |
| 441/56 |
Hand attached, held, or worn |
54 |
| 441/57 |
Having finger stalls (e.g., gloves) |
32 |
| 441/58 |
Secured to hand by strap |
37 |
| 441/60 |
Leg attached |
35 |
| 441/80 |
Water rescue or life protecting apparatus |
185 |
| 441/83 |
Air-sea rescue device |
35 |
| 441/86 |
Buoyant shark screen encircling user |
7 |
| 441/125 |
Convertible use article |
20 |
| 441/128 |
Berth |
3 |
| 441/126 |
Seating means |
14 |
| 441/127 |
Cushion |
19 |
| 441/82 |
For use over ice |
29 |
| 441/84 |
Lifeline |
62 |
| 441/85 |
Having line propelling means |
23 |
| 441/87 |
Passenger enclosing bouyancy device |
12 |
| 441/88 |
Personal flotation device |
116 |
| 441/122 |
Arm encircling means |
23 |
| 441/102 |
Body suit |
29 |
| 441/103 |
Full length |
15 |
| 441/104 |
With hood |
20 |
| 441/105 |
With mask |
9 |
| 441/106 |
For torso |
145 |
| 441/114 |
With buoyancy means on the back |
31 |
| 441/115 |
And front |
45 |
| 441/116 |
And shoulder |
43 |
| 441/117 |
With buoyancy means on the front |
44 |
| 441/118 |
And shoulder |
47 |
| 441/119 |
With buoyancy means on the side |
14 |
| 441/108 |
With buoyancy means substantially encircling the torso |
87 |
| 441/109 |
And attached hip boot |
2 |
| 441/110 |
And leg or foot strap |
1 |
| 441/111 |
And support passing over the shoulder |
19 |
| 441/112 |
Having buoyancy means |
33 |
| 441/113 |
Buoyancy means is a continuous member |
36 |
| 441/107 |
With sleeve |
16 |
| 441/124 |
Head gear |
17 |
| 441/123 |
Neck encircling means |
46 |
| 441/121 |
Suspender |
2 |
| 441/120 |
Trunks or shorts |
18 |
| 441/90 |
With mechanical inflation means |
21 |
| 441/92 |
By compressed gas means |
56 |
| 441/96 |
With control valve |
64 |
| 441/97 |
Actuated by water softened or soluble member |
4 |
| 441/93 |
With puncturing means |
60 |
| 441/95 |
Actuated by water softened or soluble member |
25 |
| 441/94 |
Lever actuated |
60 |
| 441/98 |
By gas generation from chemical reaction |
18 |
| 441/99 |
With manually operated valve |
7 |
| 441/100 |
With soluble or deformable element |
6 |
| 441/101 |
With cutting, punching, or striking means |
4 |
| 441/91 |
By pump |
3 |
| 441/89 |
With signal means |
84 |
| 441/81 |
Tossable apertured member (e.g., ring) |
35 |
| 441/65 |
Water skimming or walking device |
260 |
| 441/67 |
Circular |
35 |
| 441/79 |
Having stabilizing surface |
213 |
| 441/66 |
Inflatable |
57 |
| 441/74 |
Surfboard |
362 |
| 441/68 |
Water ski |
88 |
| 441/73 |
Having connecting means |
16 |
| 441/70 |
Ski binding |
104 |
| 441/69 |
Ski tow handle |
68 |
| 441/71 |
With rooster tail producing means |
10 |
| 441/72 |
With seat |
22 |
| 441/76 |
Water walking device (e.g., water shoes) |
47 |
| 441/77 |
Having pivoted traction flap |
27 |
| 441/78 |
Spheroid or wheel-like device encircling walker |
8 |
| 441/75 |
With lashing |
77 |
