RJ

Richard E. Champney, Jr.

MC Mine Safety Appliances Company: 1 patents #104 of 243Top 45%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,709,409 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5599584 Microminiature combustible gas sensor and method of fabricating a microminiature combustible gas sensor — 1997-02-04