Average Co-Inventor Count = 1.83
ph-index = 7
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. Parker Pen Products (6 from 33 patents)
2. Sanford Gmbh (5 from 386 patents)
11 patents:
1. D597136 - Clip for a writing instrument
2. D596669 - Writing instrument
3. D589090 - Grip and barrel for a writing instrument
4. D585937 - Writing instrument
5. D579047 - Writing instrument
6. D575825 - Clip for a writing instrument
7. D570415 - Clip
8. D569907 - Writing instrument
9. D565103 - Writing instrument
10. D535693 - Writing instrument
11. D490850 - Writing instrument