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Class Information
Number: 441
Name: Buoys, rafts, and aquatic devices >
Description: This class includes structure and attachments peculiar to mooring buoys, marker buoys, container buoys and other buoys; structure and attachment peculiar to rafts, and from analogy, to rafting and guiding of floating logs and similar material; water rescue apparatus; and other aquatic devices.










Class Number Class Name No. of Patents
441/129

Body supporting buoyant device

229
441/130

With seat

109
441/131

Annular buoyant member

77
441/132

U-shaped buoyant member

34
441/133

Buoyancy providing attachment for pipe, log, or line

93
441/134

Float for log

0
441/135

Buoyancy underwater viewing device

44
441/1

Buoy

100
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

159
441/4

Having liquid cargo transfer means

124
441/5

Having swivel coupling for cargo conduit

165
441/21

Having means to control attitude or position

49
441/22

Fluid reaction surface

29
441/28

Having ballast means

48
441/29

Variable ballast

55
441/23

Tether

81
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

61
441/30

Inflatable

60
441/31

Having chemical reactor to produce gas

12
441/6

Marker buoy

113
441/7

Having means to release buoy upon submergence

30
441/9

Gas assisted

9
441/10

Responsive to hydrostatic pressure

26
441/8

Water soluble or water weakened member

16
441/11

With signalling device

73
441/12

Audible

9
441/13

Illuminating

32
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

41
441/136

Miscellaneous

40
441/35

Rafts

35
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

186
441/41

Having inflation valve means

76
441/42

Having storage container for raft

39
441/38

With shelter

38
441/36

With signal device

11
441/55

Swimming aid to increase stroke efficiency

33
441/59

Arm attached

30
441/61

Foot attached

63
441/64

Flipper

251
441/62

Repositioned by biasing means

15
441/63

With lock or latch

16
441/56

Hand attached, held, or worn

55
441/57

Having finger stalls (e.g., gloves)

33
441/58

Secured to hand by strap

39
441/60

Leg attached

38
441/80

Water rescue or life protecting apparatus

193
441/83

Air-sea rescue device

35
441/86

Buoyant shark screen encircling user

7
441/125

Convertible use article

22
441/128

Berth

3
441/126

Seating means

14
441/127

Cushion

19
441/82

For use over ice

30
441/84

Lifeline

62
441/85

Having line propelling means

23
441/87

Passenger enclosing bouyancy device

14
441/88

Personal flotation device

121
441/122

Arm encircling means

24
441/102

Body suit

31
441/103

Full length

16
441/104

With hood

20
441/105

With mask

9
441/106

For torso

146
441/114

With buoyancy means on the back

31
441/115

And front

45
441/116

And shoulder

44
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

22
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

88
441/81

Tossable apertured member (e.g., ring)

35
441/65

Water skimming or walking device

269
441/67

Circular

37
441/79

Having stabilizing surface

221
441/66

Inflatable

60
441/74

Surfboard

374
441/68

Water ski

89
441/73

Having connecting means

16
441/70

Ski binding

105
441/69

Ski tow handle

72
441/71

With rooster tail producing means

10
441/72

With seat

22
441/76

Water walking device (e.g., water shoes)

48
441/77

Having pivoted traction flap

27
441/78

Spheroid or wheel-like device encircling walker

8
441/75

With lashing

78
 
 
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