Average Co-Inventor Count = 2.75
ph-index = 4
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. (5 from 131 patents)
5 patents:
1. 4699272 - Bill paying machine
2. 4516015 - Automatic money receiving and disbursing machine
3. 4510380 - Automatic money receiving and disbursing machine
4. 4436102 - Coin discharge machine and partitioned carton
5. 4428501 - Paper sheet dispenser