Average Co-Inventor Count = 1.67
ph-index = 4
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. J. A. Masterson & Co. (3 from 3 patents)
2. Reb Manufacturing Inc. (1 from 9 patents)
5 patents:
1. D356240 - Combined screwdriver and wrench
2. 4328884 - Clutch employing articulated clutch shoes and flyweights
3. 4320822 - Clutch-brake system for rotary mower
4. 4226313 - Clutch-brake system for rotary mower
5. 4056203 - Platform lift