Average Co-Inventor Count = 9.00
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. Seiko Epson Corporation (4 from 33,442 patents)
4 patents:
1. 7393089 - Method of refilling an ink cartridge for use in ink jet recorder
2. 6289654 - Method of manufacturing an ink cartridge for use in ink-jet recorder
3. 6224199 - Method of manufacturing an ink cartridge for use in ink jet recorder
4. 5950403 - Method of manufacturing an ink cartridge for use in ink jet recorder