Average Co-Inventor Count = 1.33
ph-index = 1
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. Jacobsen Manufacturing Company (2 from 13 patents)
2 patents:
1. D254547 - Lawn mower hand grip
2. 3980068 - Gasoline powered machine having two electric circuit switches