Average Co-Inventor Count = 2.00
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. Usm Corporation (4 from 532 patents)
4 patents:
1. 4688288 - Pulling over and toe lasting machine
2. 4491263 - Heel attaching machine
3. 4442563 - Shoe lasting machine
4. 4319373 - Shoe lasting machine