Average Co-Inventor Count = 2.18
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. Chapin Manufacturing, Inc. (4 from 116 patents)
4 patents:
1. 11483965 - Hand-held spreader having a base attachable to a plurality of different hoppers
2. 10736263 - Controlled-release spreader
3. D873865 - Particulate spreader
4. D823655 - Hand-held spreader