Average Co-Inventor Count = 1.14
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. Trodat Gmbh (6 from 51 patents)
2. Trodat-werke Walter Just Ges. M.b.h. (1 from 1 patent)
3. Trodat-werke Walter Just, Gesellschaft M.b.h. & Co., Kg (1 from 1 patent)
8 patents:
1. 6796230 - Self-inking stamp
2. D459386 - Replacement stamp pad
3. D448041 - Stamp
4. D447176 - Ballpoint pen
5. D447177 - Ballpoint pen
6. D421452 - Self-inking stamp
7. 6003686 - Holding device for ink stamps and other office utensils
8. 5850787 - Stamping device