Average Co-Inventor Count = 1.09
ph-index = 5
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. Kabushiki Kaisha Pilot Corporation (5 from 174 patents)
2. Societe Bic (1 from 493 patents)
3. Sanofi-Synthelabo (1 from 152 patents)
7 patents:
1. D1107792 - Writing instrument
2. D643877 - Ballpoint pen
3. D612427 - Ballpoint pen
4. D577068 - Marking pen
5. D549777 - Ballpoint pen
6. D467617 - Correction tape applicator
7. 6311358 - Toothbrush comprising gum-massaging sticks