Esa Virtanen

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Porvoo, FI

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Patents Grantslast 30 patents

Information Patent Grant
Conductive plastics material and a method for its preparation
- Patent number 5,585,040
- Issue date Dec 17, 1996
- Neste Oy
- Pauli Kirmanen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Conductive plastics material and a method for its preparation
- Patent number 5,585,038
- Issue date Dec 17, 1996
- Neste Oy
- Pauli Kirmanen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Metal compound/protonic acid containing electrically conductive com...
- Patent number 5,531,932
- Issue date Jul 2, 1996
- Neste Oy
- Toivo Karna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Conducting plastic material and method of producing such material
- Patent number 5,507,977
- Issue date Apr 16, 1996
- Neste Oy
- Esa Virtanen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrically conductive compositions and methods for their preparation
- Patent number 5,340,499
- Issue date Aug 23, 1994
- Neste Oy
- Toivo Karna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...