Average Co-Inventor Count = 1.67
ph-index = 5
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 33,464 patents)
7 patents:
1. 7689460 - Store management system and store management method
2. 7427014 - Shelf tag, shelf tag manufacturing system, method and program for manufacturing shelf tag and storage medium
3. 7325730 - Shopping assisting card, card issuing system, card issuing method, card issuing program, and storage medium
4. 6662080 - Electronic data distribution apparatus and distribution method
5. D426223 - IC recorder
6. D348013 - Wristwatch
7. D321701 - Liquid crystal sunglasses