Helmut Barzynski — 21 Patents at Basf Se

Helmut Barzynski has been granted 21 US patents while listed as an inventor at Basf Se. The first was granted in 1980 and the most recent in January 1992. Helmut Barzynski ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Helmut Barzynski in Bad Dürkheim, DE.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #	Title	Co-Inventors	Date
5084592	Azulenesquaric acid dyes, azulene intermediates therefor, and optical recording medium	Wolfgang Schrott, Peter Neumann, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier	1992-01-28
4966798	Optical recording medium	Sibylle Brosius, Karl-Heinz Feuerherd, Wolfgang Schrott, Bernhard Albert, Michael Acker +3 more	1990-10-30
4954422	Recording material containing a layer of polymer particles and a superimposed metallic layer	Josef Lamprecht, Gregor Ley, Arend Werner	1990-09-04
4939012	Naphtholactam dyes and optical recording medium containing these dyes	Matthias Dust, Peter Neumann, Ernst Schefczik, Heidi Benthack-Thoms, Klaus D. Schomann +2 more	1990-07-03
4937171	Photosensitive recording material	Josef Lamprecht, Gregor Ley, Arend Werner	1990-06-26
4889756	Sheet-like, multilayer, laser-optical recording material	Heidi Benthack-Thomas, Karl Hellwig, Christof Taubitz	1989-12-26
4876356	Naphtholactam dyes and optical recording medium containing these days	Matthias Dust, Peter Neumann, Ernst Schefczik, Heidi Benthack-Thoms, Klaus D. Schomann +2 more	1989-10-24
4830465	Irreversible optical recording media and fabrication thereof	Arend Werner, Hartmut Hibst	1989-05-16
4830951	Naphtholactamsquaric acid dyes and optical recording materials containing these dyes	Matthias Dust, Peter Neumann, Peter Hauser, Gerhard Wagenblast, Heidi Benthack-Thoms +2 more	1989-05-16
4806664	Novel tetraphenyldithiolene complexes, asymmetrically substituted benzoins, and optical recording materials containing the novel complexes	Wolfgang Schrott, Peter Neumann, Bernhard Albert, Michael Thomas, Klaus D. Schomann +1 more	1989-02-21
4788562	Optical recording medium	Herbert Naarmann	1988-11-29
4665129	Electrically conductive thermoplastic mixtures of macromolecular compounds and finely divided pyrrole polymers	Herbert Naarmann, Burghard Schmitt	1987-05-12
4632897	Photopolymerizable recording material suitable for the production of photoresist layers	Albrecht Eckell, Albert Elzer, Uwe Klinsmann, Reinhold J. Leyrer, Axel Sanner	1986-12-30
4576902	Process of making and using a positive working photosensitive film resist material	Dietrich Saenger	1986-03-18
4555471	Image-recording materials and image-recording carried out using these	Klaus Holoch	1985-11-26
4523208	Heat-sensitive recording material	—	1985-06-11
4515877	Image-recording materials and image-recording carried out using these to produce an optical mask	Klaus Holoch	1985-05-07
4459348	Multi-layer elements suitable for the production of printing plates and relief plates	Mong-Jon Jun, Peter Richter	1984-07-10
4424314	Curable coating composition	Heinrich Hartmann, Dieter Lautenbach, Rolf Osterloh, Lutz Goethlich, Guenter Heil	1984-01-03
4239609	Photopolymerizable coating and recording materials containing a photoinitiator and an organic halogen compound	Dietrich Saenger	1980-12-16
4205139	Curable coating composition	Heinrich Hartmann, Dieter Lautenbach, Rolf Osterloh, Lutz Goethlich, Guenter Heil	1980-05-27

Helmut Barzynski — 21 Patents

Issued Patents All Time

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