Average Co-Inventor Count = 2.24
ph-index = 19
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. Power Tool Holders, Inc. (17 from 112 patents)
2. Jacobs Chuck Manufacturing Company (9 from 44 patents)
3. Ryobi Motor Products Corp. (2 from 116 patents)
4. Jacobs Chuck Technology Corporation (2 from 26 patents)
5. The Singer Company (1 from 1,246 patents)
6. Apex Brands, Inc. (1 from 285 patents)
7. Power Tool Holders Incor. (1 from 1 patent)
33 patents:
1. 8727681 - Locking chuck
2. 8371779 - Locking chuck
3. 7976253 - Locking chuck
4. 7690871 - Locking chuck
5. 7452168 - Chuck
6. 7237988 - Locking chuck
7. 7160065 - Chuck with quick change
8. 7128503 - Locking chuck
9. 7040630 - Chuck with quick change
10. 7018146 - Chuck
11. 6832764 - Locking chuck
12. 6736410 - Chuck
13. 6722668 - Chuck having quick change mechanism
14. 6688610 - Chuck with quick change
15. 6536781 - Chuck