Average Co-Inventor Count = 2.92
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. E.f. Johnson Company (5 from 85 patents)
2. Motorola Corporation (3 from 20,290 patents)
3. Efj, Inc. (1 from 1 patent)
9 patents:
1. 10548108 - System and method for providing mobility management and out-of-coverage indication in a conventional land mobile radio system
2. 9814014 - System and method for providing mobility management and out-of-coverage indication in a conventional land mobile radio system
3. 9420558 - Hybrid land mobile radio system incorporating mobility management and out-of-coverage indication
4. 8774093 - System and method for providing mobility management and out-of-coverage indication in a conventional land mobile radio system
5. 8699369 - Hybrid land mobile radio system incorporating mobility management and out-of-coverage indication
6. 7944847 - Voting comparator method, apparatus, and system using a limited number of digital signal processor modules to process a larger number of analog audio streams without affecting the quality of the voted audio stream
7. 6865384 - Method and communication network for routing a real-time communication message based on a subscriber profile
8. 4972510 - Method and apparatus for squelching dependent on detected bond rate to
9. 4926460 - Universal PSTN page entry protocol