Average Co-Inventor Count = 3.27
ph-index = 1
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. Nu-kote International, Inc. (3 from 57 patents)
3 patents:
1. 7213489 - Ink container opener with multiple inserts for different container types
2. 7128249 - Ink container opener
3. D515892 - Ink container opener