WC

William James Campbell

CM Chapin Manufacturing: 4 patents #11 of 32Top 35%
📍 Clarence, NY: #54 of 203 inventorsTop 30%
🗺 New York: #31,572 of 115,490 inventorsTop 30%
Overall (All Time): #1,148,427 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11483965 Hand-held spreader having a base attachable to a plurality of different hoppers David Dubiel 2022-11-01
10736263 Controlled-release spreader Ed Horeth, David Dubiel 2020-08-11
D873865 Particulate spreader Edward Horeth 2020-01-28
D823655 Hand-held spreader David Dubiel 2018-07-24