DB

Don Lee Bertva

CT Cooper Technologies: 2 patents #165 of 757Top 25%
Overall (All Time): #2,274,748 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5701940 Cellular shade James A. Ford, James Murrell Kennedy, Ronald Lynn Presdorf 1997-12-30
5692550 Cellular shade material James A. Ford, James Murrell Kennedy, Ronald Lynn Presdorf 1997-12-02