Average Co-Inventor Count = 2.19
ph-index = 7
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Marvin Glass & Associates (19 from 422 patents)
19 patents:
1. 4575094 - Game board having shiftable board with indicia thereon
2. 4570938 - Board game having pieces with pivotal arm
3. 4563011 - Board game
4. 4550917 - Board racing game
5. 4544162 - Board game utilizing articulated playing pieces
6. 4534567 - Board game with chance device playing piece
7. 4534566 - Board game with reversible secondary pieces
8. 4498674 - Board game with a common piece having a spinner
9. 4337949 - Playing piece propelling game device
10. 4308684 - Toy movie camera
11. 4274629 - Combative game apparatus
12. 4262443 - Pop-up whale
13. 4253669 - Game apparatus with object receiving receptacles and object engaging
14. 4248009 - Toy motor vehicle
15. 4244573 - Competitive game apparatus