| Class Number |
Class Name |
No. of Patents |
| 440/37 |
Air propelled boat |
48 |
| 440/98 |
Buoyant propelling means |
12 |
| 440/99 |
Rotating outer hull |
4 |
| 440/100 |
Wheellike |
24 |
| 440/3 |
Diverse engine means |
47 |
| 440/6 |
Electric drive for propelling means |
383 |
| 440/7 |
With foot control |
72 |
| 440/84 |
Engine, motor, or transmission control means |
197 |
| 440/87 |
For engine speed |
198 |
| 440/85 |
For starter means |
32 |
| 440/86 |
For transmission |
158 |
| 440/95 |
Flexible endless propelling means |
12 |
| 440/96 |
With paddle |
7 |
| 440/97 |
Foldable or retractable to nonpropelling position |
2 |
| 440/48 |
Helical screw |
19 |
| 440/5 |
Hydraulic fluid drive for propelling means |
44 |
| 440/111 |
Inboard engine mount |
84 |
| 440/112 |
Having thru-hull sealing means |
116 |
| 440/38 |
Jet drive |
425 |
| 440/39 |
Auxiliary use of propulsive fluid |
35 |
| 440/40 |
Direction control for fluid jet |
94 |
| 440/42 |
Pivoted outlet |
133 |
| 440/43 |
Pivoted vane |
66 |
| 440/41 |
With bucket or clamshell-type reversing means |
105 |
| 440/47 |
Having means to increase fluid drive means efficiency |
150 |
| 440/46 |
Having means to prevent clogging |
53 |
| 440/44 |
Propulsion fluid is pressurized gas |
19 |
| 440/45 |
Produced by combustion |
13 |
| 440/88R |
Means for accomodating or moving engine fluids |
476 |
| 440/88A |
Air intake for engine |
123 |
| 440/88C |
Cooling for engine |
104 |
| 440/88D |
Auxiliary use of cooling fluid |
18 |
| 440/88G |
Water cooling exhaust |
24 |
| 440/88J |
Jackets for pipe, exhaust manifold or expansion chamber |
35 |
| 440/88K |
Within drive shaft housing |
13 |
| 440/88M |
Cooling water intake |
52 |
| 440/88N |
Engine flushing, purging, draining or winterizing equipment |
41 |
| 440/88HE |
Heat exchanger |
38 |
| 440/88P |
Pump |
23 |
| 440/88T |
Tell-tale outlet |
7 |
| 440/88F |
Fuel for engine |
50 |
| 440/88L |
Lubricant for engine |
110 |
| 440/89R |
Means for handling exhaust gas |
492 |
| 440/89G |
High and low speed exhaust pressure relief or outlet location condition responsive |
14 |
| 440/89E |
Preventing reverse flow of exhaust |
14 |
| 440/89J |
Silencer, expansion chamber, muffler |
56 |
| 440/89A |
Through hub outlet |
21 |
| 440/89H |
Treating exhaust with a catalyst |
29 |
| 440/89B |
Water cooling exhaust |
36 |
| 440/89C |
Jackets for pipe, exhaust manifold or expansion chamber |
41 |
| 440/89D |
Within drive shaft housing |
15 |
| 440/89F |
Watertrap |
19 |
| 440/1 |
Means to control the supply of energy responsive to a sensed condition |
369 |
| 440/113 |
Miscellaneous |
126 |
| 440/101 |
Oar or paddle |
98 |
| 440/102 |
Articulated sectional oar or paddle |
22 |
| 440/103 |
Having gear |
7 |
| 440/104 |
Support |
42 |
| 440/110 |
Having guard for oar |
1 |
| 440/105 |
Having outrigger |
21 |
| 440/106 |
Oarlock |
28 |
| 440/107 |
Having oar shaft restraining means |
5 |
| 440/108 |
Separate mounting means |
1 |
| 440/109 |
Socket type |
8 |
| 440/21 |
Operator powered drive for propelling means |
77 |
| 440/23 |
Fluid pump |
7 |
| 440/24 |
Having reciprocating pull cable |
12 |
| 440/32 |
Lever with connecting linkage |
13 |
| 440/22 |
Rocking watercraft |
6 |
| 440/26 |
Rotary cranking arm |
40 |
| 440/29 |
Having endless drive member |
21 |
| 440/30 |
Chain and sprocket |
47 |
| 440/28 |
Having flexible drive shaft |
12 |
| 440/31 |
Including gear means |
31 |
| 440/27 |
Plural-crank type |
49 |
| 440/25 |
Sliding handle or pedal |
17 |
| 440/13 |
Oscillating propelling means |
38 |
| 440/14 |
Fishtail motion propelling means |
27 |
| 440/15 |
Flexible |
25 |
| 440/17 |
Having nonpropelling cycle segment |
17 |
| 440/18 |
Piston and cylinder |
6 |
| 440/19 |
With means to move propelling element to nonpropelling position |
3 |
| 440/20 |
With reversing means |
6 |
| 440/16 |
Moving wave propeller |
11 |
| 440/90 |
Paddle wheel |
59 |
| 440/91 |
Having means to reposition paddle wheel assembly |
14 |
| 440/92 |
Having means to retract paddle or change paddle attitude |
10 |
| 440/93 |
Having means to provide cyclic change of paddle attitude (e.g., voith schneider) |
18 |
| 440/4 |
Plural engines with single propelling means |
19 |
| 440/11 |
Powered from land vehicle supported by vessel |
23 |
| 440/12 |
Land vehicle is two-wheel type |
27 |
| 440/49 |
Screw propeller |
102 |
| 440/51 |
Combined with rudder |
55 |
| 440/66 |
Having means to control flow around propeller |
130 |
| 440/68 |
Hull channel |
15 |
| 440/69 |
With open bottom |
54 |
| 440/70 |
Hull concavity |
11 |
| 440/67 |
Nozzle (kort-type) |
92 |
| 440/75 |
Having transmission |
318 |
| 440/79 |
Propeller arrangement |
60 |
| 440/82 |
Supporting strut |
23 |
| 440/80 |
Tandem |
65 |
| 440/81 |
On single shaft |
44 |
| 440/71 |
Propeller guard |
84 |
| 440/72 |
Cage or screen |
33 |
| 440/76 |
Propulsion unit casing |
114 |
| 440/77 |
Cowl |
216 |
| 440/78 |
Propeller shaft housing |
86 |
| 440/73 |
Self-clearing |
40 |
| 440/74 |
Shaft braking or locking |
18 |
| 440/83 |
Shafting |
194 |
| 440/50 |
Variable pitch |
56 |
| 440/53 |
With means effecting or facilitating movement of propulsion unit or a segment of the propulsion unit (e.g., tilting or steering) |
360 |
| 440/61R |
Having fluid motor to move propulsion unit or a segment of the propulsion unit |
369 |
| 440/61S |
Steering |
54 |
| 440/61A |
Control valve |
16 |
| 440/61B |
Flexible or pliant member assisted by fluid motor |
11 |
| 440/61C |
Working cylinder traveling along rod |
10 |
| 440/61T |
Tilt and/or trim |
58 |
| 440/61E |
And linear lift |
4 |
| 440/61J |
And separate fluid motor for trim |
6 |
| 440/61D |
Having integral pump, cylinder, motor, reservoir located together |
5 |
| 440/61G |
With hydraulic control valve or electrical control circuit |
30 |
| 440/61H |
And separate fluid motor for trim |
5 |
| 440/61F |
Working with pivoting linkage to effect movement |
12 |
| 440/57 |
Having gimbal or universal joint support |
78 |
| 440/63 |
Having link or lever to move propulsion unit or a segment of the propulsion unit |
161 |
| 440/62 |
Having pliant member to move propulsion unit or a segment of the propulsion unit |
78 |
| 440/55 |
Having restraining means |
66 |
| 440/56 |
With releasing means when propulsion unit hits obstruction |
49 |
| 440/64 |
Having shaft with releasable coupling |
7 |
| 440/58 |
Having toothed or threaded member to move propulsion unit or a segment of the propulsion unit |
51 |
| 440/60 |
Rack and pinion |
36 |
| 440/59 |
Screw type |
31 |
| 440/54 |
With means limited to vertical movement within hull cavity |
38 |
| 440/65 |
With means to lift propeller when an obstruction is hit |
19 |
| 440/52 |
With vibration dampening |
116 |
| 440/12.5 |
Self-propelled vehicle having land and water propulsion means (e.g., amphibious vehicle) |
66 |
| 440/12.63 |
Flexible endless track propulsion means |
26 |
| 440/12.64 |
Driven by sprocket-type wheel |
11 |
| 440/12.51 |
Having separated propulsion means for land and water |
40 |
| 440/12.56 |
Flexible endless track propulsion means |
11 |
| 440/12.57 |
Motor driven screw propeller shaft |
10 |
| 440/12.58 |
By flexible endless member (e.g., belt, chain) |
1 |
| 440/12.59 |
By gearing |
6 |
| 440/12.6 |
Bevel gearing |
1 |
| 440/12.61 |
Spur gearing |
3 |
| 440/12.55 |
Operator powered drive for propulsion means |
3 |
| 440/12.52 |
Propulsion means moveable to stowed position |
17 |
| 440/12.53 |
Water propulsion means is moveable |
5 |
| 440/12.54 |
And land propulsion means is moveable |
12 |
| 440/12.65 |
Helical screw propulsion means |
4 |
| 440/12.62 |
Operator powered drive for propulsion means |
13 |
| 440/12.66 |
Wheel-type propulsion means |
27 |
| 440/12.67 |
Drum type |
2 |
| 440/12.68 |
Having integral spoke and propelling blade means |
1 |
| 440/12.7 |
Having peripherally mounted cleat means |
7 |
| 440/12.69 |
Having propelling blade extending from side of wheel |
8 |
| 440/33 |
Towing |
14 |
| 440/34 |
Cable system |
9 |
| 440/36 |
Ground wheel or poler |
14 |
| 440/35 |
Track system |
1 |
| 440/94 |
Upright remaining orbiting paddles |
3 |
| 440/9 |
Wave powered propelling means |
23 |
| 440/10 |
By oscillating weight |
2 |
| 440/8 |
Wind driven motors |
30 |
| 440/2 |
With indicator |
130 |
