Average Co-Inventor Count = 4.80
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. John O. Butler Company (2 from 47 patents)
2 patents:
1. 6496999 - Toothbrush with bristle configuration adapted for cleaning tooth surfaces and interproximal areas
2. 5934295 - Dental hygiene system