Average Co-Inventor Count = 1.33
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. Gte Products Corporation (2 from 1,770 patents)
2. Gte Sylvania Incorporated (1 from 605 patents)
3. United Telecommunications, Inc. (1 from 3 patents)
4 patents:
1. D274428 - Housing for an automatic telephone alarm system
2. D262964 - Housing for an automatic telephone alarm system
3. D258577 - Signalling device
4. 4224602 - Signalling device