Average Co-Inventor Count = 3.69
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. Overhead Door Corporation (2 from 225 patents)
2. Gmi Holdings, Inc. (2 from 51 patents)
4 patents:
1. 6175988 - Bypass vacuum cleaner with flexible vacuum hose stored over motor cooling air shroud and carrying handle
2. 5927690 - Push-pull chain drive door operator system
3. 5664372 - Clutchless screw drive door operator
4. 5568704 - Clutchless screw drive door operator