Average Co-Inventor Count = 1.76
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. Other (2 from 832,912 patents)
2. The Charles Machine Works, Inc. (1 from 366 patents)
3 patents:
1. 10883324 - Drilling fluid system
2. 6203444 - Golf putter having a negatively contoured ball-striking surface
3. 4035865 - Implements usable by persons afflicted with arthritis