Barzynski; Helmut

Patent Applications and Registrations

Patent applications and USPTO patent grants for Barzynski; Helmut.The latest application filed is for "azulenesquaric acid dyes, azulene intermediates therefor, and optical recording medium".

Company Profile

0.16.0

Barzynski; Helmut - Duerkheim DE
Barzynski; Helmut - Bad Durkheim DE
Barzynski; Helmut - Bad Duerkheim DE
Barzynski; Helmut - 6702 Bad Durkheim 1 DE
Barzynski; Helmut - Lambsheim DT

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Azulenesquaric acid dyes, azulene intermediates therefor, and optical recording medium Grant 5,084,592 - Schrott , et al. January 28, 1	1992-01-28
Optical recording medium Grant 4,966,798 - Brosius , et al. October 30, 1	1990-10-30
Naphtholactam dyes and optical recording medium containing these dyes Grant 4,939,012 - Dust , et al. July 3, 1	1990-07-03
Sheet-like, multilayer, laser-optical recording material Grant 4,889,756 - Barzynski , et al. December 26, 1	1989-12-26
Novel tetraphenyldithiolene complexes, asymmetrically substituted benzoins, and optical recording materials containing the novel complexes Grant 4,806,664 - Schrott , et al. February 21, 1	1989-02-21
Electrically conductive thermoplastic mixtures of macromolecular compounds and finely divided pyrrole polymers Grant 4,665,129 - Naarmann , et al. May 12, 1	1987-05-12
Process of making and using a positive working photosensitive film resist material Grant 4,576,902 - Saenger , et al. March 18, 1	1986-03-18
Image-recording materials and image-recording carried out using these Grant 4,555,471 - Barzynski , et al. November 26, 1	1985-11-26
Image-recording materials and image-recording carried out using these to produce an optical mask Grant 4,515,877 - Barzynski , et al. May 7, 1	1985-05-07
Multi-layer elements suitable for the production of printing plates and relief plates Grant 4,459,348 - Jun , et al. July 10, 1	1984-07-10
Benzophenone-containing photopolymerizable binders for printing inks and coating compositions Grant 4,113,593 - Barzynski , et al. September 12, 1	1978-09-12
UV-curing printing inks Grant 4,056,453 - Barzynski , et al. November 1, 1	1977-11-01
Fluid photo-crosslinkable compositions for the manufacture of relief printing plates Grant 4,011,084 - Hartmann , et al. March 8, 1	1977-03-08
Method for the production of printing plates using photosensitive compositions Grant 4,001,015 - Barzynski , et al. January 4, 1	1977-01-04
Photocurable compositions Grant 3,926,636 - Barzynski , et al. December 16, 1	1975-12-16
Lithographic Printing Plates And Photoresists Comprising A Photosensitive Polymer Grant 3,849,137 - Barzynski , et al. November 19, 1	1974-11-19

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