Average Co-Inventor Count = 2.93
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. Jacobsen Manufacturing Company (4 from 13 patents)
4 patents:
1. 4149362 - Combined lawn mower and grass catcher
2. 4149363 - Lawn mower catcher
3. D249519 - Combined lawn mower and grass catcher
4. 3992858 - Hydraulic system for controlling a gang of lawn mowers