Average Co-Inventor Count = 2.77
ph-index = 2
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 Sylvania Incorporated (3 from 605 patents)
3 patents:
1. D251796 - Electric heater
2. D250683 - Electric burner stand
3. 4021769 - Electrical heating element