Average Co-Inventor Count = 2.95
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. Spark Technology Corporation (4 from 4 patents)
2. Cidco Incorporated (2 from 12 patents)
6 patents:
1. D532423 - Memory device with release button for use with cellular telephones
2. D527734 - Memory device for use with cellular telephones
3. D527733 - Memory device with release button for use with cellular telephones
4. D527384 - Memory device for use with cellular telephones
5. D397112 - Telephone set
6. 5754602 - Multiple key press selection for repertory dialing