CD

Charles E. Dull

SP Spx: 3 patents #98 of 468Top 25%
MA Masonite: 1 patents #150 of 210Top 75%
Overall (All Time): #1,050,655 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5906106 Refrigerant air analyzer and purge system William Brown, Walter D. Murray 1999-05-25
5693346 Automatic molded hardboard unnesting system Leo Wills, Jerry Mott 1997-12-02
5209077 Refrigerant recovery system Kenneth W. Manz, Christopher M. Powers 1993-05-11
5172562 Refrigerant recovery, purification and recharging system and method Kenneth W. Manz 1992-12-22
5158747 Apparatus for identifying and distinguishing different refrigerants Kenneth W. Manz, Gary P. Murray 1992-10-27