Average Co-Inventor Count = 3.21
ph-index = 9
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. Highwaymaster Communications, Inc. (5 from 28 patents)
2. Track Communications, Inc. (2 from 5 patents)
3. Other (1 from 832,843 patents)
4. Minorplanet Systems Usa, Inc. (1 from 2 patents)
5. Sasial Vehicle Technologies Limited (0 patent)
9 patents:
1. 6535743 - System and method for providing directions using a communication network
2. 6405033 - System and method for routing a call using a communications network
3. 6301480 - System and method for communicating using a voice network and a data network
4. 6167255 - System and method for providing menu data using a communication network
5. 6055426 - Notification of a mobile unit out of coverage
6. 5987377 - Method and apparatus for determining expected time of arrival
7. 5966658 - Automated selection of a communication path
8. 5724243 - Method and apparatus for determining expected time of arrival
9. 5699275 - System and method for remote patching of operating code located in a