Average Co-Inventor Count = 4.00
ph-index = 3
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. D398865 - Protractor and drawing template
2. D398864 - Ruler and drawing template
3. D398250 - Ruler and drawing stencil
4. D396422 - Ruler with drawing curves