Average Co-Inventor Count = 1.85
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 33,404 patents)
4 patents:
1. 6100315 - Ink for ink jet recording
2. 5932631 - Ink composition having excellent waterfastness
3. 5690721 - Water-base ink for ink jet recording
4. 5296266 - Method of preparing microcapsule