Average Co-Inventor Count = 1.33
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. Professional Chemicals Corporation (1 from 9 patents)
2. General Pump/us, Inc. (1 from 3 patents)
2 patents:
1. D321241 - Combined pressure and thermal safety valve
2. 4939808 - Carpet cleaning apparatus