Average Co-Inventor Count = 4.00
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 (3 from 44 patents)
2. Apex Brands, Inc. (2 from 285 patents)
5 patents:
1. 9364900 - Locking chuck
2. 8678400 - Locking chuck
3. 8328205 - Locking chuck
4. 7984913 - Locking chuck
5. 7708288 - Locking chuck