Resources Contact Us Home
Browse by Category: Main > Transportation & Automotive
Class Information
Number: 441/44
Name: Buoys, rafts, and aquatic devices > Rafts > Columnar flotation member
Description: Device wherein the raft has an elongated buoyancy providing member having a cross-section with a periphery of a shape similar to a circle, or multiple sided geometric figure.

Sub-classes under this class:

Class Number Class Name Patents
441/45 Hollow 12

Patents under this class:

Patent Number Title Of Patent Date Issued
6598552 Pontoon having a cross section with a non-uniform diameter and boat having same Jul. 29, 2003
6199676 Inflatable tubular structure with spiral seam Mar. 13, 2001
5707724 Fractal tube reinforcement Jan. 13, 1998
4919632 Collapsible one-man pontoon fishing raft Apr. 24, 1990
4886015 Modular flotation support collar assembly for aquaculture fish pen Dec. 12, 1989
4843992 Air tube protected by belts Jul. 4, 1989

  Recently Added Patents
Dual work function recessed access device and methods of forming
Flexible lighting devices
Modulators of cystic fibrosis transmembrane conductance regulator
Method for using extended security system, extended security system and devices
System and method for updating firmware
Synthesis of amines and intermediates for the synthesis thereof
Wind turbine
  Randomly Featured Patents
Hardware interface in an integrated circuit
Laser-resistant medical retrieval device
Method of fabricating a dual damascene structure
Charging device, process cartridge, and image forming apparatus
Anti-aliasing magnetic resonance device which reduces aliasing from regions outside of the excitation volume
Compression release mechanism
New vanadium complexes
Container for liquids
Method of repeatedly securitizing intellectual property assets and facilitating investments therein
Other protocol message routing over a wireless network of metering devices