Zahn; Wolfgang

Patent Applications and Registrations

Patent applications and USPTO patent grants for Zahn; Wolfgang.The latest application filed is for "light-sensitive component for use in photoresists".

Company Profile

0.30.2

Zahn; Wolfgang - Eltville DE
Zahn; Wolfgang - 81547 Munchen DE
Zahn; Wolfgang - Altrip DE
Zahn; Wolfgang - Munich DE
Zahn; Wolfgang - Ludwigsburg DE
Zahn; Wolfgang - Eltville-Erbach DE
Zahn; Wolfgang - Stuttgart DE
Zahn; Wolfgang - Muenchen DT
Zahn; Wolfgang - 8 Munich 13 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
Light-sensitive component for use in photoresists Grant 8,012,664 - Zahn , et al. September 6, 2	2011-09-06
Light-Sensitive Component for Use in Photoresists App 20090253073 - Zahn; Wolfgang ; et al.	2009-10-08
Process for the preparation of a photoresist solution App 20070020558 - Zahn; Wolfgang ; et al.	2007-01-25
Method for improving the contrast reproduction of digitized images Grant 6,720,992 - Zahn , et al. April 13, 2	2004-04-13
Method for electronic reduction of the contrast of video images as early as during recording Grant 6,529,243 - von Stein , et al. March 4, 2	2003-03-04
Method of purifying thrombin-like protease enzymes obtained from snake venom Grant 6,200,791 - Schwarz , et al. March 13, 2	2001-03-13
Defined enzyme mixtures for obtaining cells and treating wounds Grant 6,146,626 - Markert , et al. November 14, 2	2000-11-14
Printing of color film Grant 5,781,276 - Zahn , et al. July 14, 1	1998-07-14
Automotive bumper and muffler combination Grant 5,726,398 - Zahn , et al. March 10, 1	1998-03-10
Method and apparatus for reducing hydrocarbon emissions for an internal combustion engine Grant 5,613,359 - Zahn , et al. March 25, 1	1997-03-25
Exhaust gas equipment for an internal combustion engine Grant 5,223,009 - Schuster , et al. June 29, 1	1993-06-29
1,2-naphthoquinone-2-diazide-sulfonic acid amides and photosensitive compositions containing these compounds Grant 5,162,190 - Zahn , et al. November 10, 1	1992-11-10
Photographic copier with masking device and copying method Grant 5,155,524 - Oberhardt , et al. October 13, 1	1992-10-13
Color printing method and apparatus Grant 4,873,546 - Zahn , et al. October 10, 1	1989-10-10
Bis-1,2-naphthoquinone-2-diazide-sulfonic acid amides, their use in a radiation-sensitive mixture, and radiation-sensitive copying material Grant 4,774,171 - Zahn , et al. September 27, 1	1988-09-27
Process for determining aging condition of exhaust-gas catalyst Grant 4,691,562 - Abthoff , et al. September 8, 1	1987-09-08
Method of and an arrangement for calibrating a color copying apparatus Grant 4,464,045 - Findeis , et al. August 7, 1	1984-08-07
Preparation of an enzymatically active formulation embedded in silica gel Grant 4,461,832 - Tschang , et al. July 24, 1	1984-07-24
Apparatus for convoluting webs onto rotary cores Grant 4,218,032 - Nagel , et al. August 19, 1	1980-08-19
Method and apparatus for making color prints Grant 4,192,605 - Fergg , et al. March 11, 1	1980-03-11
Method and apparatus for evaluating developed photographic films prior to copying Grant 4,152,068 - Bickl , et al. May 1, 1	1979-05-01
Evaluation and copying of originals arranged in a strip Grant 4,128,330 - Fergg , et al. December 5, 1	1978-12-05
Automatic color printing apparatus Grant 4,101,217 - Fergg , et al. July 18, 1	1978-07-18
Label for use on containers for photographic film or the like Grant 3,946,507 - Fergg , et al. March 30, 1	1976-03-30
Apparatus for applying indicia to webs of photographic paper or the like Grant 3,909,171 - Weber , et al. September 30, 1	1975-09-30
Arrangement For Processing Printing Orders Grant 3,857,220 - Schneider , et al. December 31, 1	1974-12-31
Color Printer Using Light Flash Tubes Grant 3,813,158 - Zahn , et al. May 28, 1	1974-05-28
Method And Apparatus For Encoding And Treating Strips Of Photographic Print Grant 3,811,768 - Zahn , et al. May 21, 1	1974-05-21
Method And Apparatus For Determining Printing Time Of Negatives Grant 3,709,613 - Zahn , et al. January 9, 1	1973-01-09
Method And Apparatus For The Production Of Color Prints Grant 3,709,601 - Zahn , et al. January 9, 1	1973-01-09
Driving Arrangement For Single Blade Shutter For Photographic Apparatus Grant 3,580,155 - Zahn , et al. May 25, 1	1971-05-25
Exposure Time Control System For Photographic Apparatus Grant 3,576,370 - Kuhn , et al. April 27, 1	1971-04-27

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