Average Co-Inventor Count = 2.57
ph-index = 3
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 Communications Holding N.v. (2 from 17 patents)
2. Seiko Telecommunication Systems, Inc. (1 from 2 patents)
3 patents:
1. 5572488 - Wristwatch paging receiver having analog message display
2. 5479378 - Analog wristwatch paging receiver
3. 5475653 - Analog wristwatch paging receiver