Average Co-Inventor Count = 1.56
ph-index = 1
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. Darex Corporation (7 from 80 patents)
7 patents:
1. D1087714 - Knife sharpener
2. D1054269 - Knife sharpener
3. D1033192 - Knife sharpener
4. D1026607 - Knife sharpener
5. D1017366 - Manual sharpener
6. D1017360 - Sharpener
7. D1017367 - Sharpener