Average Co-Inventor Count = 1.33
ph-index = 2
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. The Gillette Company (2 from 2,663 patents)
2 patents:
1. 5897266 - Vent system for writing instrument
2. D384105 - Vented pen cap