Average Co-Inventor Count = 3.05
ph-index = 11
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. Levenger Company (18 from 32 patents)
18 patents:
1. D455024 - Portable writing surface
2. D451551 - Traveling in-box
3. D447342 - Case
4. D439279 - Rack for folders and the like
5. D437148 - Cabinet
6. D436203 - Lamp
7. D427458 - Rack for reading materials
8. D427356 - Lamp
9. D423572 - Portfolio
10. D422023 - Pen
11. D421825 - Cart
12. D418997 - Adjustable table
13. D418694 - Rack for reading materials
14. D418544 - Bookstand
15. D414811 - Ink bottle