EDGAR GRETENER DR ING has a total of 16 patent applications. Its first patent ever was published in 1949. It filed its patents most often in Germany. Its main competitors in its focus markets optics, electrical machinery and energy and audio-visual technology are EDGAR GRETENER, GRETENER EDGAR DR ING and LAB PARTNERS ASS INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | Germany | 16 |
# | Industry | |
---|---|---|
#1 | Optics | |
#2 | Electrical machinery and energy | |
#3 | Audio-visual technology | |
#4 | Control | |
#5 | Digital networks | |
#6 | Packaging and shipping | |
#7 | Telecommunications |
# | Name | Total Patents |
---|---|---|
#1 | Gretener Dr-Ing Edgar | 10 |
#2 | Frey Hans Jakob | 1 |
#3 | Ehrat Kurt Dipl-Ing | 1 |
#4 | Arni Johann Rudolf | 1 |
#5 | Frey Hans J | 1 |
#6 | Ehrat Kurt | 1 |
Publication | Filing date | Title |
---|---|---|
DE1002258B | Selectively acting reflector, especially for light sources for projection purposes | |
DE881060C | Secrecy device for telegraph operation |