Siegfried Berger — 9 Patents at Unknown

Siegfried Berger has been granted 9 US patents while listed as an inventor at Unknown. The first was granted in 1983 and the most recent in March 2008. Siegfried Berger ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Siegfried Berger in Jülich, DE.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
7347221	Solenoid valve	Joachim Forster	2008-03-25
6814339	Coaxial solenoid valve	Joachim Forster	2004-11-09
4936834	Apparatus for aspirating secreted fluids from a wound	Walter Beck, Heinz-Peter Werner	1990-06-26
4798583	Method and apparatus for aspirating secreted fluids from a wound	Walter Beck, Margrit Werner	1989-01-17
4792328	Method and appparatus for aspirating secreted fluids from a wound	Walter Beck, Heinz-Peter Werner	1988-12-20
4713052	Apparatus for aspirating secreted fluids from a wound	Walter Beck, Margrit Werner	1987-12-15
4681562	Method and apparatus for aspirating secreted fluids from a wound	Walter Beck, Margrit Werner	1987-07-21
4661093	Method for aspirating secreted fluids from a wound	Walter Beck, Heinz-Peter Werner	1987-04-28
4409509	Piezoelectrically driven transducer for electron work function and contact potential measurements	Karl-Heinz Besocke	1983-10-11

Siegfried Berger — 9 Patents

Issued Patents All Time

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