Average Co-Inventor Count = 1.07
ph-index = 11
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. Discovision Associates (21 from 329 patents)
2. International Business Machines Corporation (1 from 164,244 patents)
23 patents:
1. 6198717 - System for recording digital information in a pulse-length modulation format
2. 6014355 - System for recording digital information in a pulse-length modulation
3. 5592457 - System for recording digital information in a pulse-length modulation
4. 5592455 - System for recording digital information in a pulse-length modulation
5. 5587983 - System for recording digital information in a pulse-length modulation
6. 5581528 - System for recording digital information in a pulse-length modulation
7. 5577015 - System for recording digital information in a pulse-length modulation
8. 5559781 - System for recording digital information in a pulse-length modulation
9. 5557593 - System for recording digital information in a pulse-length modulation
10. 5553047 - System for recording digital information in a pulse-length modulation
11. 5479390 - System for recording digital information in a pulse-length modulation
12. 5459709 - System for recording digital information in a pulse-length modulation
13. 5448545 - System for reproducing digital information in a pulse-length modulation
14. 5375116 - System for recording digital information in a pulse-length modulation
15. 5373490 - System for recording digital information in a pulse-length modulation