Average Co-Inventor Count = 1.67
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. Douglas Machine Limited Liability Company (1 from 12 patents)
2. Bass Gambling Supplies Inc. (1 from 1 patent)
2 patents:
1. 5543699 - Random infeed timing device and methods
2. 5444750 - Tally punch machine