Average Co-Inventor Count = 4.00
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. At&t Bell Laboratories (4 from 3,345 patents)
4 patents:
1. D278056 - Telephone base
2. D277665 - Telephone base with extender
3. D277570 - Adjunct key to a telephone set or similar article
4. D276046 - Housing for a telephone