DR

Donald L. Richards

EA Eaton: 5 patents #568 of 3,708Top 20%
📍 Durham, NC: #986 of 4,103 inventorsTop 25%
🗺 North Carolina: #10,032 of 45,564 inventorsTop 25%
Overall (All Time): #1,060,583 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5172720 Single seal fluid control valve 1992-12-22
4507956 Circuit mounting apparatus Lawrence Schlesinger, Dale F. German 1985-04-02
4246930 Relief valve William V. Bishop 1981-01-27
4226261 Relief valve Charles E. Ekeleme, Jr. 1980-10-07
4194770 Compression fitting 1980-03-25