Helmut Bonnemann

Person

Essen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method for modifying the dispersion characteristics of metal organi...
- Patent number 6,531,304
- Issue date Mar 11, 2003
- Studiengesellschaft Kohle mbH
- Helmut Bönnemann
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Anticorrosive magnetic nanocolloids protected by precious metals
- Patent number 6,491,842
- Issue date Dec 10, 2002
- Studiengesellschaft Kohle mbH
- Helmut Bönnemann
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Process for producing tenside-stabilized colloids of mono- and bime...
- Patent number 6,090,746
- Issue date Jul 18, 2000
- Studiengesellschaft Kohle M.b.h.
- Helmut Bonnemann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of highly active doped metal supported...
- Patent number 5,641,723
- Issue date Jun 24, 1997
- Studiengesellschaft Kohle M.b.h.
- Helmut Bonnemann
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Microcrystalline-to-amorphous metal and/or alloy powders dissolved...
- Patent number 5,580,492
- Issue date Dec 3, 1996
- Studiengesellschaft Kohle mbH
- Helmut Bonnemann
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for preparing microcrystalline-to-amorphous metal and/or al...
- Patent number 5,308,377
- Issue date May 3, 1994
- Studiengesellschaft Kohle mbH
- Helmut Bonnemann
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Acicular iron-magnet pigments having an adjustable coercive field s...
- Patent number 5,240,515
- Issue date Aug 31, 1993
- Studiengesellschaft Kohle mbH
- Helmut Bonnemann
- G11 - INFORMATION STORAGE
Information Patent Grant
Acicular iron-magnet pigments having an adjustable coercive field s...
- Patent number 5,053,075
- Issue date Oct 1, 1991
- Studiengesellschaft Kohle M.b.h.
- Helmut Bonnemann
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for preparing finely divided metal powders
- Patent number 4,713,110
- Issue date Dec 15, 1987
- Studiengesellschaft Kohle mbH
- Borislav Bogdanovic
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method for manufacturing pyridine and pyridine derivatives from alk...
- Patent number 4,588,815
- Issue date May 13, 1986
- Studiengesellschaft Kohle M.b.h.
- Helmut Bonnemann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Production of transition metal complexes
- Patent number 4,556,719
- Issue date Dec 3, 1985
- Studiengesellschaft Kohle mbH
- Helmut Bonnemann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Production of transition metal complexes
- Patent number 4,469,638
- Issue date Sep 4, 1984
- Studiengesellschaft Kohle mbH
- Helmut Bonnemann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of 2-vinylpyridine from acetylene and acryl...
- Patent number 4,267,329
- Issue date May 12, 1981
- Studiengesellschaft Kohle GmbH
- Helmut Bonnemann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of 2-vinylpyridine from acetylene and acryl...
- Patent number 4,266,061
- Issue date May 5, 1981
- Studiengesellschaft Kohle mbH
- Helmut Bonnemann
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Monodispersable magnetic nanocolloids having an adjustable size and...
- Publication number 20060037434
- Publication date Feb 23, 2006
- Studiengesellschaft Kohle mbH
- Helmut Bonnemann
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Anticorrosive magnetic nanocolloids protected by precious metals
- Publication number 20030098437
- Publication date May 29, 2003
- Helmut Bonnemann
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Helmut Bonnemann

Person

Patents Grantslast 30 patents

Method for modifying the dispersion characteristics of metal organi...

Anticorrosive magnetic nanocolloids protected by precious metals

Process for producing tenside-stabilized colloids of mono- and bime...

Process for the preparation of highly active doped metal supported...

Microcrystalline-to-amorphous metal and/or alloy powders dissolved...

Process for preparing microcrystalline-to-amorphous metal and/or al...

Acicular iron-magnet pigments having an adjustable coercive field s...

Acicular iron-magnet pigments having an adjustable coercive field s...

Process for preparing finely divided metal powders

Method for manufacturing pyridine and pyridine derivatives from alk...

Production of transition metal complexes

Production of transition metal complexes

Process for preparation of 2-vinylpyridine from acetylene and acryl...

Process for preparation of 2-vinylpyridine from acetylene and acryl...

Patents Applicationslast 30 patents

Monodispersable magnetic nanocolloids having an adjustable size and...

Anticorrosive magnetic nanocolloids protected by precious metals