Average Co-Inventor Count = 2.67
ph-index = 1
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. F.l. Industries, Inc. (1 from 32 patents)
2. Technology Service Group (1 from 2 patents)
2 patents:
1. 5978458 - Magnetic pay telephone cash box proximity switch
2. D311966 - Luminaire