Average Co-Inventor Count = 1.00
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. Oki America, Inc. (3 from 23 patents)
3 patents:
1. D292206 - Credit card handset telephone and stand instrument
2. D291199 - Handset for mobile telephone
3. D289044 - Portable handset radio telephone