Average Co-Inventor Count = 2.40
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. Verbatim Corporation (1 from 86 patents)
2. Lapine Technology (1 from 2 patents)
2 patents:
1. 4703376 - Apparatus for loading and retracting magnetic head in a disk drive
2. 4231532 - Tape cassette with improved tape guiding