Average Co-Inventor Count = 1.60
ph-index = 3
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. Textron Corporation (1 from 953 patents)
2. Clairol Incorporated (1 from 283 patents)
3. The Regina Company (1 from 20 patents)
4. Trc Acquisition Corporation (1 from 11 patents)
4 patents:
1. D309806 - Vacuum cleaner
2. 4761850 - Vacuum cleaner having an integral tool holder
3. D252529 - Tweezer
4. D247298 - Card file