Average Co-Inventor Count = 2.57
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. Norris Communications Corp. (3 from 4 patents)
3 patents:
1. 5842170 - Method for editing in hand held recorder
2. 5839108 - Flash memory file system in a handheld record and playback device
3. 5742737 - Method for recording voice messages on flash memory in a hand held