Average Co-Inventor Count = 5.39
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. Irwin-industrial Tool Company (5 from 291 patents)
5 patents:
1. D789428 - Hole saw
2. 9586270 - Coated hole cutter
3. D711441 - Hole saw
4. D692470 - Hole saw
5. D690334 - Hole saw