Average Co-Inventor Count = 1.25
ph-index = 2
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. Brasscraft Manufacturing Company (3 from 127 patents)
2. Cobra Products, Inc. (1 from 11 patents)
4 patents:
1. 11035111 - Plunger
2. 10041238 - Plunger
3. 8434186 - Drum auger
4. D680282 - Plunger cup