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WUELFING JOHANN A

Overview
  • Total Patents
    121
About

WUELFING JOHANN A has a total of 121 patent applications. Its first patent ever was published in 1908. It filed its patents most often in United States, Japan and Canada. Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and machines are SHARPS ASS, GUANGZHOU BEBETTER MEDICINE TECH CO LTD and CURTANA PHARMACEUTICALS INC.

Patent filings per year

Chart showing WUELFING JOHANN As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tauscher Manfred 19
#2 Credner Karl 13
#3 Johann A Wuelfing 11
#4 Brenner Guenter 8
#5 Goering Joachim 8
#6 Jozic Ljerka 8
#7 Rohte Oskar 8
#8 Goring Joachim 7
#9 Geisel Berthold 6
#10 Goring Joachim E 6

Latest patents

Publication Filing date Title
JPS5916890A Xanthine derivative
FI801875A 7- (oxoalkyl) -1,3-dialkylxantiner foerfarande foer deras framstaellning och ceiling model innehaollande dessa foereningar
NZ193654A Naphthalene sulphonamido-alkyl-piperidines,pyrrolidines or piperazines and pharmaceutical compositions
CA1128509A Thiotanthine compounds
NZ193285A 3-(1,3-dialkylxanthin-7-yl)propan-2-one ketals
US4256750A Pharmaceutical compositions
IE790811L Pharmaceutical compositions containing a xanthine derivative.
NZ190742A Compositions containing 1 3-di-n-butyl-7-(2-ocopropyl)-xanthine for treatment of peripheral vascular disease
US4225607A Pharmaceutical composition containing a xanthine derivative
YU96177A Process for obtaining adenine derivatives
US4092417A Theophylline salts of 5-methylisoxazole-3-carboxylic acid
JPS5372813A Production of 55methyll isooxoll33carboxylic acid and salt thereof
US4060617A Esters of the ophyllinylacetic acid
JPS5283883A Xanthin derivatives and application thereof
JPS5283851A 55nnbutyllpyridinee22carboxylic acid derivatives
CS187326B2 Method of producing 3-methylpyrazol-5-carboxylates
HU171387B Process for producing new 3-methyl-pyrazolo-5-carboxylates and pharmaceutical compositions containing them as active agent
GB1426685A 1,3-bis -beta-ethylhexyl-5 amino-5-methylhexahydropyrimidine- pyridine-3-carboxylate
US2665235A Calcium lactate suppository
GB346208A Improved process for manufacturing dilithium alkali citrates