Douglas Leach

Follow

Person

Hockessin, DE, US

People

Patents Grantslast 30 patents

Information Patent Grant
Photosensitive compositions and clean running photopolymer printing...
- Patent number 6,403,269
- Issue date Jun 11, 2002
- Douglas R. Leach
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Photosensitive compositions and clean running photopolymer printing...
- Patent number 6,399,278
- Issue date Jun 4, 2002
- Douglas R. Leach
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Photosensitive resin composition useful in fabricating printing plates
- Patent number 6,214,522
- Issue date Apr 10, 2001
- MacDermid, Incorporated
- Douglas Leach
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Photosensitive resin composition useful in fabricating printing plates
- Patent number 6,197,459
- Issue date Mar 6, 2001
- MacDermid, Incorporated
- Douglas Leach
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS