Average Co-Inventor Count = 2.14
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. Daiwa Seiko, Inc. (5 from 602 patents)
5 patents:
1. 6601334 - Fishing rod
2. 6148558 - Fishing rod
3. D321744 - Reel seat for fishing rod
4. 4682439 - Fishingline guide for fishing rod
5. D290637 - Line guide for fishing rod