DR

David N. Redden

Xerox: 3 patents #3,111 of 8,622Top 40%
Overall (All Time): #1,598,943 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6894761 Method and apparatus for controlling humidity in a copying device Karl B. Ayash, Thomas C. Hollar, Ali R. Dergham, John H. Steele 2005-05-17
6621554 Method and apparatus for controlling humidity in a copying device Karl B. Ayash, Thomas C. Hollar, Ali R. Dergham, John H. Steele 2003-09-16
4244649 Optical system for providing visual aid for proper magnification selection James D. Rees, Craig A. Smith, Paul H. Stiebitz 1981-01-13