Average Co-Inventor Count = 2.57
ph-index = 3
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. Mark Voting Systems, Inc. (2 from 2 patents)
2. United States Voting Machines, Inc. (1 from 1 patent)
3 patents:
1. 5758325 - Electronic voting system that automatically returns to proper operating
2. 5666765 - Suitcase voting booth with access for handicapped persons
3. 5379212 - Locking memory device