Average Co-Inventor Count = 3.00
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. E.f. Johnson Company (4 from 85 patents)
2. E.p. Johnson Company (1 from 1 patent)
5 patents:
1. 11445336 - Land mobile radio dispatch console
2. 10492036 - Land mobile radio dispatch console
3. 9930500 - Land mobile radio dispatch console
4. 9641988 - Land mobile radio dispatch console
5. 8355691 - Land mobile radio dispatch console