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Class Information
Number: 114/68
Name: Ships > Building > Insubmergible vessels
Description: Vessels provided with means for preventing a vessel from sinking, involving sufficient bulkheads or compartments to keep it afloat or providing impenetrable or puncture-proof skins or sides with or without linings or fillings of waterproof or leak stopping character.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7412939 |
Emergency buoyancy system |
Aug. 19, 2008 |
| 7344377 |
System and device for improving the performance of a water skier in a slalom course |
Mar. 18, 2008 |
| 7337744 |
Boat safety float |
Mar. 4, 2008 |
| 7156033 |
Inflating aircraft flotation device |
Jan. 2, 2007 |
| 7040938 |
Armored foldaway inflatable floating device |
May. 9, 2006 |
| 6881108 |
System for preventing an automobile from being immersed in water |
Apr. 19, 2005 |
| 6845726 |
Inflating watercraft flotation device |
Jan. 25, 2005 |
| 6830004 |
Inflating watercraft flotation device |
Dec. 14, 2004 |
| 6814019 |
Inflating watercraft flotation device |
Nov. 9, 2004 |
| 6802274 |
Inflating watercraft flotation device |
Oct. 12, 2004 |
| 6758158 |
Unsinkable vessel system |
Jul. 6, 2004 |
| 6612256 |
Combination boat and distressed boat flotation apparatus and related methods |
Sep. 2, 2003 |
| 6550415 |
System to keep any type of vessel afloat in case of a leak |
Apr. 22, 2003 |
| 6526900 |
Amphibious vehicle having an inflatable pontoon |
Mar. 4, 2003 |
| 6484656 |
Automatic inflating boat flotation device |
Nov. 26, 2002 |
| 6470818 |
Automatic inflating watercraft flotation device |
Oct. 29, 2002 |
| 6435125 |
Float switch activation assembly |
Aug. 20, 2002 |
| 6431108 |
System for keeping afloat any type of boat in case of a leak |
Aug. 13, 2002 |
| 6347970 |
Deployable recovery system for snowmobile and rider |
Feb. 19, 2002 |
| 6343562 |
Canoe and kayak mid-point sponsons safety |
Feb. 5, 2002 |
| 6327988 |
Ship with a protection system making it unsinkable |
Dec. 11, 2001 |
| 6070546 |
Snowmobile flotation device |
Jun. 6, 2000 |
| 5546886 |
Craft with rigid tubulars, having watertight, non-communicating compartments |
Aug. 20, 1996 |
| 5421283 |
Lightweight boat construction |
Jun. 6, 1995 |
| 5255624 |
Sailboat mast floatation device |
Oct. 26, 1993 |
| 5215031 |
Protect a boat |
Jun. 1, 1993 |
| 5150662 |
Snowmobile flotation system |
Sep. 29, 1992 |
| 5135325 |
Emergency boom for use on a tanker |
Aug. 4, 1992 |
| 5113779 |
Flotation device for a combat vehicle |
May. 19, 1992 |
| 5095843 |
Storage and buoyancy device for small watercraft |
Mar. 17, 1992 |
| 4996936 |
Emergency floatation device for watercraft |
Mar. 5, 1991 |
| 4887541 |
Deployable flotation device |
Dec. 19, 1989 |
| 4864961 |
Auxiliary flotation system |
Sep. 12, 1989 |
| 4817555 |
Boat flotation collar |
Apr. 4, 1989 |
| 4765269 |
Rightable catamaran |
Aug. 23, 1988 |
| 4458618 |
Safety device for rendering a boat unsinkable |
Jul. 10, 1984 |
| 4263862 |
Lightweight marine structural concrete system |
Apr. 28, 1981 |
| 4227474 |
Catamaran equipped with re-righting device |
Oct. 14, 1980 |
| 4193367 |
Boat designed to withstand the force of underwater explosions |
Mar. 18, 1980 |
| 4117795 |
Multi-hull self rescuing system |
Oct. 3, 1978 |
| 3952350 |
Gravity weight trigger for a life raft |
Apr. 27, 1976 |
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