JJ

Joseph L. Ritchey, Jr.

🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,200,754 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6544343 Method for cleaning substrates Johann F. Adam, Evan F. Cromwell 2003-04-08
6438781 Washer for cleaning substrates Johann F. Adam, Evan F. Cromwell 2002-08-27