Average Co-Inventor Count = 1.00
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. State Industries, Inc. (2 from 26 patents)
2 patents:
1. 4527543 - Water heater construction
2. 4447377 - Method of insulating the exterior of a water heater tank