Average Co-Inventor Count = 3.13
ph-index = 16
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. At&t Bell Laboratories (12 from 3,345 patents)
2. Bell Telephone Laboratories (9 from 2,714 patents)
3. At&t Technologies, Inc. (8 from 382 patents)
4. At&t Information Systems Inc. (4 from 243 patents)
5. At&t Teletype Corporation (4 from 30 patents)
6. Teletype Corporation (3 from 132 patents)
7. American Safety Razor Company (3 from 117 patents)
8. The Singer Company (1 from 1,246 patents)
9. American Telephone & Telegraph Co., At&t Bell Laboratories (1 from 745 patents)
10. American Telephone and Telegraph, Co. (1 from 386 patents)
11. Henry Dreyfuss Associates (1 from 7 patents)
12. Dow Jones & Company, Inc. (1 from 2 patents)
47 patents:
1. D341586 - Video telephone set
2. D327139 - Razor handle
3. D325653 - Razor handle
4. D323656 - Wall-mounted, coinless public telephone
5. D318051 - Telephone stand
6. D313233 - Telephone answering set
7. D309958 - Safety razor handle
8. D304587 - Telephone dialer adjunct
9. D289643 - Housing for telephone base
10. D289240 - Adjustable work table or similar article
11. D289155 - Telephone answering device
12. D288445 - Terminal housing
13. 4629276 - Multidirection connector housing
14. D285305 - Keyboard housing
15. D285076 - Video display terminal housing