Randall H. Helland

Person

Lake Elmo, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Pavement marking composition comprising ceramic fibers
- Patent number 7,169,831
- Issue date Jan 30, 2007
- 3M Innovative Properties Company
- Randall H. Helland
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stable antihalation materials for photographic and photothermograph...
- Patent number 6,329,128
- Issue date Dec 11, 2001
- Eastman Kodak Company
- Randall H. Helland
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Stabilized thermal-dye-bleach constructions
- Patent number 5,395,747
- Issue date Mar 7, 1995
- Minnesota Mining and Manufacturing Company
- Randall H. Helland
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Quaternary-ammonium phenylsulfonylacetate thermal-dye-bleach agents
- Patent number 5,384,237
- Issue date Jan 24, 1995
- Minnesota Mining and Manufacturing Company
- Dian E. Stevenson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dihydroperimidine squarylium dyes as antihalation and acutance mate...
- Patent number 5,380,635
- Issue date Jan 10, 1995
- Minnesota Mining and Manufacturing Company
- Charles W. Gomez
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Tetra-alkylammonium phenylsulfonylacetate thermal-dye-bleach agents
- Patent number 5,324,627
- Issue date Jun 28, 1994
- Minnesota Mining and Manufacturing Company
- Dian E. Stevenson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Thermal-dye-bleach construction comprising a polymethine dye and a...
- Patent number 5,314,795
- Issue date May 24, 1994
- Minnesota Mining and Manufacturing Company
- Randall H. Helland
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic element containing a thermal dye bleach system
- Patent number 5,266,452
- Issue date Nov 30, 1993
- Minnesota Mining and Manufacturing Company
- Jonathan P. Kitchin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal dye bleach construction sensitive to ultraviolet radiation
- Patent number 5,258,274
- Issue date Nov 2, 1993
- Minnesota Mining and Manufacturing Company
- Randall H. Helland
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal dye bleach construction
- Patent number 5,135,842
- Issue date Aug 4, 1992
- Minnesota Mining and Manufacturing Company
- Jonathan P. Kitchin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Primer/antihalation coating for photothermographic constructions
- Patent number 4,752,559
- Issue date Jun 21, 1988
- Randall H. Helland
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fluorinated carbon-containing developer composition
- Patent number 4,681,830
- Issue date Jul 21, 1987
- Minnesota Mining and Manufacturing Company
- Randall H. Helland
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MARKING PAVEMENT WITH SHEET COMPRISING CERAMIC FIBERS
- Publication number 20060111468
- Publication date May 25, 2006
- 3M Innovative Properties Company
- Randall H. Helland
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Pavement marking composition comprising ceramic fibers
- Publication number 20030099512
- Publication date May 29, 2003
- 3M Innovative Properties Company
- Randall H. Helland
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Pavement markings comprising synthetic polymeric fibers
- Publication number 20030069358
- Publication date Apr 10, 2003
- 3M Innovative Properties Company
- Randall H. Helland
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Randall H. Helland

Person

Patents Grantslast 30 patents

Pavement marking composition comprising ceramic fibers

Stable antihalation materials for photographic and photothermograph...

Stabilized thermal-dye-bleach constructions

Quaternary-ammonium phenylsulfonylacetate thermal-dye-bleach agents

Dihydroperimidine squarylium dyes as antihalation and acutance mate...

Tetra-alkylammonium phenylsulfonylacetate thermal-dye-bleach agents

Thermal-dye-bleach construction comprising a polymethine dye and a...

Photographic element containing a thermal dye bleach system

Thermal dye bleach construction sensitive to ultraviolet radiation

Thermal dye bleach construction

Primer/antihalation coating for photothermographic constructions

Fluorinated carbon-containing developer composition

Patents Applicationslast 30 patents

METHOD OF MARKING PAVEMENT WITH SHEET COMPRISING CERAMIC FIBERS

Pavement marking composition comprising ceramic fibers

Pavement markings comprising synthetic polymeric fibers