Average Co-Inventor Count = 2.40
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. Cooper Industries, Inc. (3 from 901 patents)
3 patents:
1. D421230 - Tape measure blade
2. D402216 - Tape measure blade
3. D397950 - Tape measure housing