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. Laurel Bank Machine Co., Ltd. (2 from 131 patents)
2 patents:
1. 4277774 - Bill discriminating apparatus
2. 4253655 - Multiple bank note temporary storing device for bank note totaling