Average Co-Inventor Count = 1.00
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. Parker Pen Products (3 from 33 patents)
3 patents:
1. D600281 - Writing instrument
2. D591349 - Writing instrument
3. D580494 - Writing instrument