Average Co-Inventor Count = 4.50
ph-index = 3
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. American Telephone and Telegraph Company; At&t Information Systems (2 from 26 patents)
2. Henry Dreyfuss Associates (1 from 7 patents)
3. Golden Associates (1 from 1 patent)
3 patents:
1. D294500 - Telephone handset
2. D294496 - Telephone set or similar article
3. 4678229 - Reclining chair