Average Co-Inventor Count = 5.00
ph-index = 6
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. Seiko Epson Corporation (7 from 33,404 patents)
7 patents:
1. 7802877 - Ink cartridge and recording apparatus
2. 7686441 - Ink cartridge and recording apparatus
3. 7669993 - Ink cartridge and recording apparatus
4. 7244018 - Ink cartridge having retaining structure and memory
5. 7237883 - Ink cartridge having positioning structure and recording apparatus for receiving the ink cartridge
6. 7008053 - Ink cartridge and recording apparatus
7. 6979079 - Ink cartridge and recording apparatus