Donald W. Johnson

Person

Wayland, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Photoimageable coating composition and composite article thereof
- Patent number 7,449,280
- Issue date Nov 11, 2008
- MicroChem Corp.
- Donald W. Johnson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fast drying thick film negative photoresist
- Patent number 6,391,523
- Issue date May 21, 2002
- MicroChem Corp.
- Rodney J. Hurditch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dissolution rate modifiers for lift-off resists
- Patent number 6,303,260
- Issue date Oct 16, 2001
- MicroChem Corp.
- Rodney J. Hurditch
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for removing photoresist composition from substrate surfaces
- Patent number 5,637,436
- Issue date Jun 10, 1997
- Hoechst Celanese Corporation
- Donald W. Johnson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Composition and method for removing photoresist composition from su...
- Patent number 5,426,017
- Issue date Jun 20, 1995
- Hoechst Celanese Corporation
- Donald W. Johnson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Low chlorine epoxy resin formulations
- Publication number 20090233225
- Publication date Sep 17, 2009
- Donald W. Johnson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Epoxy removal process for microformed electroplated devices
- Publication number 20080142478
- Publication date Jun 19, 2008
- MicroChem Corp.
- Harris R. Miller
- B81 - MICRO-STRUCTURAL TECHNOLOGY
Information Patent Application
Packaging of MEMS devices
- Publication number 20070243662
- Publication date Oct 18, 2007
- Donald W. Johnson
- B81 - MICRO-STRUCTURAL TECHNOLOGY
Information Patent Application
Method of forming a photoresist element
- Publication number 20060257785
- Publication date Nov 16, 2006
- Donald W. Johnson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Photoimageable coating composition and composite article thereof
- Publication number 20050266335
- Publication date Dec 1, 2005
- MicroChem Corp., a corporation
- Donald W. Johnson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Permanent resist composition, cured product thereof, and use thereof
- Publication number 20050260522
- Publication date Nov 24, 2005
- William Weber
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
FAST DRYING THICK FILM NEGATIVE PHOTORESIST
- Publication number 20020076651
- Publication date Jun 20, 2002
- MicroChem Corp., a Corporation of the State of Massachussets
- Rodney J. Hurditch
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Donald W. Johnson

Person

Patents Grantslast 30 patents

Photoimageable coating composition and composite article thereof

Fast drying thick film negative photoresist

Dissolution rate modifiers for lift-off resists

Method for removing photoresist composition from substrate surfaces

Composition and method for removing photoresist composition from su...

Patents Applicationslast 30 patents

Low chlorine epoxy resin formulations

Epoxy removal process for microformed electroplated devices

Packaging of MEMS devices

Method of forming a photoresist element

Photoimageable coating composition and composite article thereof

Permanent resist composition, cured product thereof, and use thereof

FAST DRYING THICK FILM NEGATIVE PHOTORESIST