Inventor · disambiguated record
Helmut Pieper
Also filed as: PIEPER HELMUT
83 granted patents·3 pending applications·2,579 citations·filing 1974–2008
99Inventor score
Files withTHOMAE GMBH DR K34SORG GMBH & CO KG28BOEHRINGER SOHN INGELHEIM9CELAMERCK GMBH & CO KG2SORG NIKOLAUS GMBH & CO KG2
Top patents by PatentIndex Score
86 records- 0198US4882736AMethod for efficiently using flue gas energy in a glass furnaceSORG GMBH & CO KG·Filed 1988·Granted Nov 21, 1989·96 cites·16 claims
- 0297US5463071A5-membered heterocyclic compounds, processes for preparing them and pharmaceutical compositions containing these compoundsTHOMAE GMBH DR K·Filed 1993·Granted Oct 31, 1995·128 cites·12 claims
- 0396US6344449B1Modified aminoacids, pharmaceuticals containing these compounds and method for their productionTHOMAE GMBH DR K·Filed 1997·Granted Feb 5, 2002·158 cites·3 claims
- 0496US5817677A5-membered heterocycles, medicaments containing these compounds, their use and processes for their preparationTHOMAE GMBH DR K·Filed 1996·Granted Oct 6, 1998·202 cites·8 claims
- 0596US4119710ABronchospasmolytic 1-(p-amino-phenyl)-2-amino-ethanols-(1) and saltsBOEHRINGER SOHN INGELHEIM·Filed 1976·Granted Oct 10, 1978·47 cites·7 claims
- 0695US6154481AMethod of operation of a glass melting furnace and a glass melting furnace for the practice of the methodSORG GMBH & CO KG·Filed 1999·Granted Nov 28, 2000·81 cites·15 claims
- 0795US4932035ADiscontinuous glass melting furnaceSORG GMBH & CO KG·Filed 1989·Granted Jun 5, 1990·58 cites·10 claims
- 0895US4910200AAcrylic acid morpholides, fungicidal compositions and useCELAMERCK GMBH & CO KG·Filed 1986·Granted Mar 20, 1990·73 cites·9 claims
- 0994US5541343ACyclic imino derivatives and pharmaceutical compositions containing themTHOMAE GMBH DR K·Filed 1994·Granted Jul 30, 1996·111 cites·10 claims
- 1093US5442064ACarboxylic acid derivatives, pharmaceutical compositions containing these compounds and processes for preparing themTHOMAE GMBH DR K·Filed 1993·Granted Aug 15, 1995·131 cites·6 claims
- 1193US4753934AAcrylic acid heterocyclic amides, fungicidal compositions and useCELAMERCK GMBH & CO KG·Filed 1986·Granted Jun 28, 1988·49 cites·8 claims
- 1293US4490369ABenzazepine derivatives, their pharmaceutical compositions and method of useTHOMAE GMBH DR K·Filed 1983·Granted Dec 25, 1984·34 cites·14 claims
- 1393US3950393AAminobenzyl-amides and salts thereofBOEHRINGER SOHN INGELHEIM·Filed 1974·Granted Apr 13, 1976·28 cites·3 claims
- 1492US6085551AMethod and apparatus for manufacturing high melting point glasses with volatile componentsSORG GMBH & CO KG·Filed 1998·Granted Jul 11, 2000·82 cites·27 claims
- 1590US5276049ACyclic urea derivatives, pharmaceutical compositions containing these compounds and methods of using the sameTHOMAE GMBH DR K·Filed 1992·Granted Jan 4, 1994·66 cites·12 claims
- 1689US5519036ACyclic derivatives pharmaceutical compositions containing these compounds and processes for preparing themTHOMAE GMBH DR K·Filed 1994·Granted May 21, 1996·69 cites·9 claims
- 1789US5455348A2-pyrrolidinones, pharmaceutical compositions containing these compounds and processes for preparing themTHOMAE GMBH DR K·Filed 1993·Granted Oct 3, 1995·41 cites·9 claims
- 1889US5434150ACondensed 5-membered heterocyclic compounds, processes for preparing them and pharmaceutical preparations containing these compoundsTHOMAE GMBH DR K·Filed 1992·Granted Jul 18, 1995·101 cites·8 claims
- 1988US5597825ABiphenyl derivatives, pharmaceutical compositions containing these compounds and processes for preparing themTHOMAE GMBH DR K·Filed 1994·Granted Jan 28, 1997·23 cites·8 claims
- 2088US4093734AAmino-benzoic acid amidesBOEHRINGER SOHN INGELHEIM·Filed 1976·Granted Jun 6, 1978·33 cites·7 claims
- 2188US3942968AMethod and apparatus for melting and subsequently refining glassSORG NIKOLAUS GMBH & CO KG·Filed 1974·Granted Mar 9, 1976·29 cites·13 claims
- 2287US5681841ACyclic urea derivatives, pharmaceutical compositions containing these compounds and processes for preparing themTHOMAE GMBH DR K·Filed 1993·Granted Oct 28, 1997·30 cites·10 claims
- 2384US7498325B2Modified amino acids, pharmaceuticals containing these compounds and method for their productionKARL THOMAS GMBH·Filed 2004·Granted Mar 3, 2009·23 cites·5 claims
- 2484US5418233AHeterobiarly derivatives and pharmaceutical compositions thereofTHOMAE GMBH DR K·Filed 1992·Granted May 23, 1995·49 cites·14 claims
- 2580US5852192ACyclic urea derivatives, pharmaceutical compositions containing these compounds and processes for preparing themTHOMAE GMBH DR K·Filed 1997·Granted Dec 22, 1998·27 cites·10 claims
- 2680US4944785AProcess using melt accelerator for the conversion of solid waste substances into glassSORG GMBH & CO KG·Filed 1989·Granted Jul 31, 1990·42 cites·12 claims
- 2778US4797092ACullet preheaterSORG NIKOLAUS GMBH & CO KG·Filed 1987·Granted Jan 10, 1989·29 cites·8 claims
- 2877US5994356ACarboxylic acid derivatives, medicaments comprising these compounds, their use and processes for their productionTHOMAE GMBH DR K·Filed 1997·Granted Nov 30, 1999·43 cites·9 claims
- 2977US5880284ACyclic urea derivatives, pharmaceutical compositions containing these compounds and processes for preparing themTHOMAE GMBH DR K·Filed 1997·Granted Mar 9, 1999·18 cites·7 claims
- 3077US5736559ABiphenyl derivatives, pharmaceutical compositions containing these compounds and processes for preparing themTHOMAE GMBH DR K·Filed 1996·Granted Apr 7, 1998·14 cites·10 claims
- 3177US4829058ASubstituted bis-(4-aminophenyl)-sulfonesTHOMAE GMBH DR K·Filed 1987·Granted May 9, 1989·17 cites·11 claims
- 3277US4004902AMethod of dyeing and treating glass streamsNIKOLAUS SORG G M B H & CO·Filed 1974·Granted Jan 25, 1977·19 cites·2 claims
- 3374US5755846ARegenerative glass melting furnace with minimum NOx formation and method of operating itSORG GMBH & CO KG·Filed 1994·Granted May 26, 1998·33 cites·23 claims
- 3474US4101671AAminobenzyl-amines and salts thereofBOEHRINGER SOHN INGELHEIM·Filed 1977·Granted Jul 18, 1978·7 cites·7 claims
- 3573US5922763ABiphenyl derivatives, pharmaceutical compositions containing these compounds and processes for preparing themTHOMAE GMBH DR K·Filed 1997·Granted Jul 13, 1999·11 cites·9 claims
- 3673US5591769ACyclic imino derivatives and pharmaceutical compositions containing themTHOMAE GMBH DR K·Filed 1995·Granted Jan 7, 1997·30 cites·9 claims
- 3771US5035735AProcess for vitrifying environmentally hazardous waste material in a glass melting furnaceSORG GMBH & CO KG·Filed 1989·Granted Jul 30, 1991·20 cites·16 claims
- 3870US5700801APiperazine derivatives, pharmaceutical compositions containing these compounds, their use and processes for preparing themTHOMAE GMBH DR K·Filed 1995·Granted Dec 23, 1997·30 cites·11 claims
- 3970US4852118AEnergy saving method of melting glassSORG GMBH & CO KG·Filed 1988·Granted Jul 25, 1989·18 cites·10 claims
- 4069US5032161AApparatus for melting asbestos-containing waste material in glassSORG GMBH & CO KG·Filed 1989·Granted Jul 16, 1991·25 cites·7 claims
- 4168US5922717APiperazine derivatives, medicaments comprising these compounds, their use and processes for their preparationTHOMAE GMBH DR K·Filed 1995·Granted Jul 13, 1999·26 cites·6 claims
- 4268US5478942ACyclic urea derivatives and pharmaceutical compositions containing these compoundsTHOMAE GMBH DR K·Filed 1993·Granted Dec 26, 1995·17 cites·22 claims
- 4368US4244967AAntiphlogistic pharmaceutical compositions containing a phenylethanolamine and methods of useBOEHRINGER SOHN INGELHEIM·Filed 1979·Granted Jan 13, 1981·9 cites·2 claims
- 4467US5607944ABicyclic heterocyclic compounds, pharmaceutical preparations containing these compounds and processes for their preparationsTHOMAE GMBH DR K·Filed 1995·Granted Mar 4, 1997·26 cites·7 claims
- 4566US5728190AMelting furnace and process for the inertization of hazardous substances by vitrificationBETEILIGUNGEN SORG GMBH & CO A·Filed 1995·Granted Mar 17, 1998·23 cites·13 claims
- 4666US5489693ACyclic imino derivatives, pharmaceutical compositions containing these compounds and processes preparing themFiled 1993·Granted Feb 6, 1996·10 cites·5 claims
- 4765US6289694B1Method and apparatus for melting glass in U-flame and cross-fired tank furnaces with a reduction of the Nox and Co content of the waste gasesSORG GMBH & CO KG·Filed 1999·Granted Sep 18, 2001·19 cites·8 claims
- 4865US5110329AFiltering device for dust and exhaust gases of glass melting furnaces containing sulfurous compoundsSORG GMBH & CO KG·Filed 1990·Granted May 5, 1992·17 cites·10 claims
- 4965US4789990AGlass melting furnace of improved efficiencySORG GMBH & CO KG·Filed 1987·Granted Dec 6, 1988·15 cites·12 claims
- 5064US4027091AMethod and apparatus for the indirect heating of glass-carrying passages, feeders and feeder headsSORG GMBH & CO KG·Filed 1975·Granted May 31, 1977·17 cites·10 claims
Showing the top 50 of 86 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →