Average Co-Inventor Count = 2.96
ph-index = 15
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. (24 from 134 patents)
2. Hallmark Cards, Inc. (1 from 233 patents)
3. Crayola Llc. (1 from 130 patents)
26 patents:
1. 7607591 - Airbrush
2. 7329062 - Retractable writing instrument
3. 6964534 - Retractable writing instrument
4. D398865 - Protractor and drawing template
5. D398864 - Ruler and drawing template
6. D398250 - Ruler and drawing stencil
7. D396422 - Ruler with drawing curves
8. 5664947 - Method, apparatus, and kit for marking a surface with colored bubbles
9. D365111 - Molding insert pair
10. D364893 - Writing instrument container
11. 5441418 - Thermochromic drawing device
12. 5441149 - Writing instrument container
13. D358599 - Molding apparatus
14. 5413472 - Molding apparatus
15. D356829 - Holder for writing instruments and supplies