Average Co-Inventor Count = 2.00
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. Outboard Marine Corporation (4 from 942 patents)
4 patents:
1. 4307563 - Filament trimmer mower
2. 4281505 - Filament mower with filament advancing mechanism
3. 4209964 - Two-speed forward and reverse self-propel system for walk-behind mowers
4. 3958398 - Starter interlock for self-propelled lawn mower