Average Co-Inventor Count = 2.00
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. Safeco Mfg. Limited (1 from 4 patents)
2. Safeco Manufacturing Limited (1 from 1 patent)
2 patents:
1. 4932076 - Fire fighter helmets
2. 4829599 - Fire fighter helmets