Average Co-Inventor Count = 3.20
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. Refac International, Limited (3 from 9 patents)
2. Mercer Tool Corp. (1 from 1 patent)
4 patents:
1. D459340 - Sports radio
2. D450049 - Clock radio
3. D425508 - Audio entertainment unit
4. D414986 - Utensil handle