Average Co-Inventor Count = 4.27
ph-index = 9
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. Hitachi Koki Co., Ltd. (16 from 1,267 patents)
16 patents:
1. D792182 - Jig saw
2. D689432 - Rechargeable battery
3. D678023 - Portable plane
4. D675500 - Portable electric driver
5. D623197 - Engine
6. D622661 - Battery pack
7. 7778796 - Miter saw for displaying angle of cutter blade cutting workpiece
8. D618976 - Nailing machine
9. D595552 - Portable electric saw
10. D592028 - Portable electric hammer drill
11. D591916 - Engine blower
12. D585716 - Portable electric driver
13. D553562 - Battery pack
14. D551930 - Reciprocating saw
15. D544436 - Battery pack