Average Co-Inventor Count = 1.00
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. Morris Pen Corporation (6 from 7 patents)
2. Thyroscope Inc. (13 patents)
6 patents:
1. D490108 - Pen
2. D478932 - Pen
3. D478627 - Pen
4. D470530 - Rubber grip carried on a pen
5. D458306 - Pen
6. D457186 - Pen