Average Co-Inventor Count = 2.90
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. M & W Gear Company (1 from 28 patents)
2. S/v Tool Co. Inc. (1 from 13 patents)
3. Engmans, Inc. (1 from 3 patents)
3 patents:
1. D316101 - Rotary cutter housing for mowers or the like
2. 4290465 - Hand instrument
3. D250141 - Utility light