Average Co-Inventor Count = 2.09
ph-index = 6
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 (7 from 33 patents)
2. The Gillette Company (1 from 2,654 patents)
8 patents:
1. D425119 - Writing instrument
2. D424616 - Clip for a writing instrument
3. D423579 - Writing instrument
4. D422024 - Writing instrument
5. D416579 - Clip for a writing instrument
6. D416580 - Clip for a writing instrument
7. D416577 - Writing instrument
8. D406604 - Writing instrument