Inventor · disambiguated record
Erich Lehr
Also filed as: LEHR ERICH
28 granted patents·2 pending applications·426 citations·filing 1977–2004
96Inventor score
Top patents by PatentIndex Score
30 records- 0194US5641784A8-substituted 1,3-dialiphaticxanthine derivativesBOEHRINGER INGELHEIM KG·Filed 1994·Granted Jun 24, 1997·69 cites·11 claims
- 0292US5719279AAsymmetrically substituted xanthinesBOEHRINGER INGELHEIM KG·Filed 1996·Granted Feb 17, 1998·140 cites·9 claims
- 0389US5532368AXanthine derivatives with adenosine-antagonistic activityBOEHRINGER SOHN INGELHEIM·Filed 1993·Granted Jul 2, 1996·53 cites·2 claims
- 0485US6492377B1Imidazotriazolopyrimidines with adenosine-antagonistic activityBOEHRINGER INGELHEIM PHARMA·Filed 2000·Granted Dec 10, 2002·17 cites·11 claims
- 0581US6191153B1Use of 2-amino-6-n-propyl-amino-4,5,6,7-tetrahydrobenzothiazole as a pharmaceutical composition having an antidepressant activityBOEHRINGER INGELHEIM KG·Filed 2000·Granted Feb 20, 2001·16 cites·2 claims
- 0673US4833140A1-(benzyl or pyridylmethyl)-4 or 5-aminomethyl-pyrrolidin-2-onesBOEHRINGER INGELHEIM KG·Filed 1988·Granted May 23, 1989·13 cites·10 claims
- 0771US6187780B1Assymetrically substituted xanthine derivatives having adenosine A1 antagonistic activityBOEHRINGER INGELHEIM PHARMA·Filed 1999·Granted Feb 13, 2001·32 cites·9 claims
- 0868US4670456A4-Aminocarbonylaminomethyl-1-benzylpyrrolidin-2-ones as nootropic agents and as agents for treating cerebral insufficiencyBOEHRINGER INGELHEIM KG·Filed 1985·Granted Jun 2, 1987·10 cites·6 claims
- 0967US4581364A1-substituted-4-hydroxymethyl-pyrrolidin-2-onesBOEHRINGER INGELHEIM KG·Filed 1984·Granted Apr 8, 1986·9 cites·7 claims
- 1065US4767759APiperazinyl and morpholinyl substituted 1-(benzyl or pyridylmethyl)-4-or-5-aminomethyl-pyrrolidin-2-ones and their nootropic useBOEHRINGER INGELHEIM KG·Filed 1986·Granted Aug 30, 1988·8 cites·9 claims
- 1164US4732900A1,2,4-triazolo-carbamatesBOEHRINGER INGELHEIM KG·Filed 1985·Granted Mar 22, 1988·12 cites·10 claims
- 1263US5696124AXanthine derivatives with adenosine-antagonistic activityBOEHRINGER INGELHEIM KG·Filed 1995·Granted Dec 9, 1997·15 cites·9 claims
- 1360US5688802ABornyl xanthine derivatives with adenosine-antagonistic activityBOEHRINGER INGELHEIM KG·Filed 1996·Granted Nov 18, 1997·10 cites·3 claims
- 1456US4762832AMorpholine containing pyrrolidinones pharmaceutical compositions and useBOEHRINGER INGELHEIM KG·Filed 1986·Granted Aug 9, 1988·5 cites·5 claims
- 1553US2005032806A1Method for treating anhedonia using dopamine agonistsBOEHRINGER INGELHEIM PHARMA·Filed 2004·Application pending·0 cites
- 1648US4333944A8-Halo-6-phenyl-4H-s-triazolo (3,4-c) thieno 1,4-diazepin-1-onesBOEHRINGER SOHN INGELHEIM·Filed 1981·Granted Jun 8, 1982·3 cites·3 claims
- 1748US2003036548A1Method for treating anhedonia using dopamine agonistsBOEHRINGER INGELHEIM PHARMA·Filed 2002·Application pending·0 cites
- 1846US5073671A1-(benzyl or pyridylmethyl)-4 or 5-aminomethyl-pyrrolidin-2-onesBOEHRINGER INGELHEIM KG·Filed 1990·Granted Dec 17, 1991·4 cites·1 claims
- 1942US4931435AAgent with an antidepressant activityBOEHRINGER INGELHEIM KG·Filed 1988·Granted Jun 5, 1990·2 cites·4 claims
- 2041US5217967AAgent with an antidepressant activityBOEHRINGER SOHN INGELHEIM·Filed 1991·Granted Jun 8, 1993·5 cites·5 claims
- 2139US4857528ASubstituted pyrrolidinones, pharmaceutical compositions and useBOEHRINGER INGELHEIM KG·Filed 1988·Granted Aug 15, 1989·1 cites·7 claims
- 2238US4954516AUse of 1-benzyl-aminoalkyl-pyrrolidinones as antidepressantsBOEHRINGER INGELHEIM KG·Filed 1989·Granted Sep 4, 1990·1 cites·4 claims
- 2337US4085216A2-(4-Phenyl-4-cyano-n-butyl)-1,2,3,4-tetrahydro-5(H)-pyrido-[4,3-b]-indoles and salts thereofBOEHRINGER SOHN INGELHEIM·Filed 1977·Granted Apr 18, 1978·1 cites·6 claims
- 2433US4996224A1-benzyl-4- or 5-pyrrolidinomethyl-pyrrolidin-2-ones and nootropic method of use thereofBOEHRINGER INGELHEIM KG·Filed 1989·Granted Feb 26, 1991·0 cites·6 claims
- 2533US4912129AUse of 1-benzyl-aminoalkyl-pyrrolidinones as antidepressantsBOEHRINGER SOHN INGELHEIM·Filed 1989·Granted Mar 27, 1990·0 cites·2 claims
- 2633US4891378ANortropanyl containing pyrrolidinones, pharmaceutical compositions and useBOEHRINGER SOHN INGELHEIM·Filed 1989·Granted Jan 2, 1990·0 cites·5 claims
- 2732US4812453AUse of 1-benzyl-aminoalkyl-pyrrolidinones as antidepressantsBOEHRINGER INGELHEIM KG·Filed 1987·Granted Mar 14, 1989·0 cites·1 claims
- 2831US5149808AN-heterocyclic substituted -pyrrolidin-2-onesBOEHRINGER INGELHEIM KG·Filed 1991·Granted Sep 22, 1992·0 cites·1 claims
- 2930US5422353ATetrahydropyridine derivativesBOEHRINGER INGELHEIM KG·Filed 1993·Granted Jun 6, 1995·0 cites·7 claims
- 3030US4180573A1-Piperazino-6-phenyl-4H-s-triazolo[3,4-c]thieno[2,3-e]1,4-diazepinesBOEHRINGER SOHN INGELHEIM·Filed 1978·Granted Dec 25, 1979·0 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Erich Lehr files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →