Resources Contact Us Home
Browse by Category: Main > Entertainment & Recreation
Class Information
Number: D21/25
Name: Games, toys, and sports goods >

Sub-classes under this class:

Class Number Class Name Patents
D21/300 Game or gambling article 46
D21/398 Toy 180
D21/662 Exercise equipment 392
D21/698 Sports equipment 55
D21/811 Amusement, playground equipment or entertainment article not elsewhere specified 44
D21/834 Tent 116
D21/900 Backgammon game or gameboard 21

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
Method and system for quantifying viewer awareness of advertising images in a video source
Method, system, and computer program product for scoring theoretical peptides
Maintenance guidance display device, maintenance guidance display method, and maintenance guidance display program
Detecting mirrors on the web
Process for producing dipeptides or dipeptide derivatives
Portion of a display panel with an unhappy facial expression icon
Acoustic reconfiguration devices and methods
  Randomly Featured Patents
Electrode for electrolysis and process for producing the same
Method for generating, managing and displaying information retrieval data on information processing system
Method of patterning a semiconductor device
Development of method for screening physiologically active pyrrole imidazole derivative
Temperature regulation of air cycle refrigeration systems
Lid for closing a cup
Compound semiconductor device having dopant concentration gradient
Mixed nonionic detergent composition
Rotational speed responsive type fluid pressure signal control valve
Method for driving plasma display panel