HB

Helmut Barzynski

Basf Se: 20 patents #668 of 13,826Top 5%
Overall (All Time): #212,283 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
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