Average Co-Inventor Count = 1.50
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. Nortronics Company, Inc. (3 from 10 patents)
3 patents:
1. D261888 - Cassette tape eraser
2. 4113141 - Dispenser package for magnetic tape splicing tabs
3. D245167 - Splicer for magnetic tape