Average Co-Inventor Count = 1.42
ph-index = 23
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. Shop Vac Corporation (137 from 411 patents)
2. Other (7 from 832,843 patents)
3. Mcculloch Corporation (1 from 66 patents)
4. Robert C. Berfield (0 patent)
5. Robert L. Crevling (0 patent)
6. Randy L. Buss (0 patent)
7. Craig A. Seasholtz (0 patent)
8. Li H. Liu (0 patent)
9. Ronald Griffin (0 patent)
10. David Martinez (0 patent)
146 patents:
1. 7513464 - Hose holder
2. 7395601 - Rotary flail feeding device
3. 7191989 - Hose holder
4. 7100776 - Wall mounted tool holder
5. D525114 - Tool holder
6. 6530116 - Vacuum cleaner with muffled detachable blower exhaust
7. 6508618 - Pump having dynamic shaft seal
8. 6499182 - Convertible blower port for vacuum cleaner
9. 6494544 - Axle and wheel mounting system for a wet/dry vacuum cleaner
10. 6485259 - Vaneless impeller housing for a vacuum cleaner
11. 6481107 - Rotary flail feeding device and method
12. 6481049 - Self-evacuating vacuum cleaner
13. 6478342 - Swivel coupling for a hose
14. 6451078 - Fitting for vacuum bags
15. 6440227 - Nozzle and method providing increased liquid lift height for a wet/dry vacuum cleaner