Harold F. Sandford

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Groton, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Phenolic resin purification
- Patent number 6,200,479
- Issue date Mar 13, 2001
- Shipley Company, L.L.C.
- Anthony Zampini
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photoresist with novel photoactive compound
- Patent number 6,051,358
- Issue date Apr 18, 2000
- Shipley Company, L.L.C.
- Anthony Zampini
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Thermodynamically stable photoactive compound
- Patent number 5,945,516
- Issue date Aug 31, 1999
- Shipley Company, L.L.C.
- Harold F. Sandford
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Thermodynamically stable photoactive compound
- Patent number 5,821,345
- Issue date Oct 13, 1998
- Shipley Company, L.L.C.
- Harold F. Sandford
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for preparing polyglutarimide having a lower molecular weigh...
- Patent number 4,636,532
- Issue date Jan 13, 1987
- Shipley Company Inc.
- Harold F. Sandford
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY