Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Entertainment & Recreation
Class Information
Number: 273/DIG.20
Name: Amusement devices: games > Weighted balls
Description:










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8128523 Sportsball with improved spiral rotation Mar. 6, 2012
7300357 Practice sport projectile having a through hole Nov. 27, 2007
6264574 Game ball and method of using game ball Jul. 24, 2001
6186906 Gel matrix golf ball Feb. 13, 2001
6176790 Method of swing training for sports Jan. 23, 2001
6142886 Golf ball and method of manufacture Nov. 7, 2000
6045461 Two-piece solid golf ball Apr. 4, 2000
6045469 Tubular projectile for sport throwing games Apr. 4, 2000
6027412 Bowling ball Feb. 22, 2000
6015356 Golf ball and method of producing same Jan. 18, 2000
6012997 Compound safety ball Jan. 11, 2000
6004220 Putting training device Dec. 21, 1999
5984806 Perimeter weighted golf ball with visible weighting Nov. 16, 1999
5971872 Low spin golf ball Oct. 26, 1999
5951407 Bowling ball with asymmetrical core Sep. 14, 1999
5931747 Golf ball Aug. 3, 1999
5919100 Fluid or liquid filled non-wound golf ball Jul. 6, 1999
5888150 Golf ball Mar. 30, 1999
5863264 Two-piece solid golf ball Jan. 26, 1999
5842936 Golf ball Dec. 1, 1998
5839968 Club swing training method and apparatus therefor Nov. 24, 1998
5836832 Golf ball Nov. 17, 1998
5833548 Bowling ball Nov. 10, 1998
5827167 Three-piece wound golf ball Oct. 27, 1998
5823888 Wound golf ball Oct. 20, 1998
5820489 Low spin golf ball Oct. 13, 1998
5807192 Solid golf ball Sep. 15, 1998
5803833 Two-piece solid golf ball Sep. 8, 1998
5800284 Golf ball Sep. 1, 1998
5782702 Practice golf ball Jul. 21, 1998
5782703 Practice golf ball Jul. 21, 1998
5780169 Golf ball Jul. 14, 1998
5772204 Table top bowling game Jun. 30, 1998
5759109 Simulated golf ball instructional device Jun. 2, 1998
5752888 Thread-wound golf balls May. 19, 1998
5752889 Two-piece solid golf ball May. 19, 1998
5722906 Game ball Mar. 3, 1998
5688191 Multilayer golf ball Nov. 18, 1997
5588648 Training ball for baseball and softball batting practice Dec. 31, 1996
5586760 Soccer training belt for use with a cord suspended soccer ball Dec. 24, 1996
5525118 Weighted core for bowling ball and method of making same Jun. 11, 1996
5522774 Bowling ball with top weight and ceramic core Jun. 4, 1996
5462273 Variable weight playball Oct. 31, 1995
5462491 Bowling ball with weight block Oct. 31, 1995
5451046 Flag football equipment Sep. 19, 1995
5437578 Set of bowling balls having similar properties and cores therefor Aug. 1, 1995
5387637 Golf ball core compositions Feb. 7, 1995
5383660 Football with improved grip Jan. 24, 1995
5380002 Variable-weight play pieces Jan. 10, 1995
5358448 Bumper bowling game and erratically rollable weighted bowling ball Oct. 25, 1994

1 2 3










 
 
  Recently Added Patents
Method and system for detecting center pivot collision
Fast base station switching method and system, and hierarchical zone-based fast handoff approach
Roll of continuous web of optical film laminate and production method therefor
Bull stationery tab
Method of and apparatus for laser drilling holes with improved taper
Fuel cell system with mechanical check valve
Apparatus for merging spatial audio streams
  Randomly Featured Patents
Method and apparatus for identifying an IMS service
Cosmetic composition intended for making up the skin, process for its preparation and make-up product obtained from said composition
Camera structure
Surge control system
Electrostatic printing utilizing dehumidified air
Railroad alignment system
Methods and systems of transferring a substrate to minimize heat loss
System and method for correcting induction logging device measurements by alternately estimating geometry and conductivity parameters
Solid state display
4-Amino-6, 7-dimethoxy-2-(4-heteroaryl-piperazino) quinazoline _antihypertensives