Average Co-Inventor Count = 1.17
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. Other (5 from 832,718 patents)
2. Corvallis Tool Company (1 from 5 patents)
8 patents:
1. D943265 - Umbrella
2. D943266 - Umbrella
3. 7438096 - Veneer composer
4. 4804017 - Brake bleeder valve apparatus having integral check valve and method for
5. 4709722 - Valve apparatus for crankcase oil drainage
6. 4372068 - Rechargeable transparent slide viewer apparatus
7. 4190356 - Photographic easel apparatus
8. 4027318 - Stabilizing foot apparatus for camera