Average Co-Inventor Count = 1.88
ph-index = 8
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. Everest & Jennings, Inc. (6 from 37 patents)
2. Allegretti & Company (4 from 17 patents)
10 patents:
1. 5156226 - Modular power drive wheelchair
2. D316063 - Power drive wheelchair
3. 4969232 - Adjustable caster wheel assembly
4. 4967864 - Modular power drive wheelchair
5. D298709 - Seat module
6. D294476 - Modular wheelchair base
7. 4474327 - Fertilizer spreader
8. 4463544 - Edger
9. 4387852 - Fertilizer spreader
10. 4346526 - Snow thrower