Average Co-Inventor Count = 1.52
ph-index = 3
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. Jacobs Chuck Manufacturing Company (7 from 44 patents)
2. Apex Brands, Inc. (4 from 285 patents)
3. Power Tool Holders, Inc. (112 patents)
11 patents:
1. 9364900 - Locking chuck
2. 9358617 - Chuck
3. 8777231 - Chuck
4. 8678400 - Locking chuck
5. 8387995 - Chuck
6. 8328205 - Locking chuck
7. 8029000 - Chuck
8. 7984913 - Locking chuck
9. 7837200 - Chuck
10. 7708288 - Locking chuck
11. 7527273 - Locking chuck