Average Co-Inventor Count = 3.43
ph-index = 4
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. Binney & Smith Inc. (4 from 134 patents)
4 patents:
1. 5855351 - Easel
2. D374467 - Combined toy boat and container for writing instruments
3. D356334 - Writing surfaces and container for supplies
4. 5388689 - Writing surfaces and container for supplies