Average Co-Inventor Count = 2.46
ph-index = 7
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. Ricoh Company, Ltd. (12 from 28,584 patents)
2. Japan Agency for Marine-Earth Science and Technology (1 from 73 patents)
3. E.i. Dupont De Nemours and Company (16,338 patents)
4. Unitika Ltd. (391 patents)
5. Du Pont Kabushiki Kaisha (0 patent)
13 patents:
1. D755887 - Paper sensor
2. D687092 - Copying machine
3. D682348 - Printer
4. D631504 - Copying machine
5. D631505 - Copying machine
6. D622759 - Toner cartridge
7. D622311 - Toner cartridge
8. D622312 - Toner cartridge
9. D620523 - Toner cartridge
10. 7693664 - Method and computer program product for determining whether or not a test protein has thermostability
11. D559898 - Document feeder for a digital copying machine
12. D559897 - Document feeder for a digital copying machine
13. D501024 - Laser printer