Average Co-Inventor Count = 1.85
ph-index = 2
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. Other (3 from 832,680 patents)
2. Digital Technology Systems of California, Inc. (1 from 1 patent)
4 patents:
1. 6351302 - Analog sound track digitizer
2. 5754044 - Magnetooptic system for article defects and flaws detection
3. 5526075 - Apparatus for reading analog sound tracks on film with circuit for
4. 5025473 - Hemispherical speaker system