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KARL WAHL DR

Overview
  • Total Patents
    11
About

KARL WAHL DR has a total of 11 patent applications. Its first patent ever was published in 1958. It filed its patents most often in Germany. Its main competitors in its focus markets optics, audio-visual technology and basic materials chemistry are ALBERT AUGUST, JELLEY EDWIN ERNEST and ISHIDA KATSUTOSHI.

Patent filings in countries

World map showing KARL WAHL DRs patent filings in countries
# Country Total Patents
#1 Germany 11

Patent filings per year

Chart showing KARL WAHL DRs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wahl Dr Karl 9
#2 Echterhoff Emmy Wahl Geb 2
#3 Holtz Hans 1
#4 Schulze Walter 1
#5 Grosssteinbeck Dipl-Chem Rolf 1

Latest patents

Publication Filing date Title
DE1164830B Process for the production of additive color photographic material
DE1156652B Device for the production of blocks of colored layers, from which colored line grids for additive color photography are produced by peeling
DE1130285B Process for producing color halftone color film material
DE1128290B Process for the production of a multi-layer color block from which color screens for additive color photography can be peeled off
DE1128289B Method and device for the production of color grids for additive color photography
DE1146246B Process for the production of film carriers or magnetic sound tapes and similar tapes and foils with the aid of the electrostatic spraying process
DE1092303B Method and device for the production of color grids for additive color photography
DE1090875B Process for the production of magnetogram carriers
DE1063031B Method and device for the production of color grids for additive color photography
DE1058838B Process for producing a color photographic material for the color halftone process
DE1058837B Process for the production of color grids