WS

William K. Shaffer

3M: 1 patents #7,233 of 11,543Top 65%
Overall (All Time): #2,453,070 of 4,157,543Top 60%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12403337 SCBA with enhanced emergency breathing support system Darrill L. Plummer, William E. Parson 2025-09-02