Average Co-Inventor Count = 3.00
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. Electro-sound, Inc. (2 from 6 patents)
2 patents:
1. 4589608 - Cassette loading apparatus
2. 4512527 - Cassette loading apparatus