Patrick Leon
25Patents
5h-index
44Co-inventors
65Inventor score
Filing activity: Aug 11, 1993 → Sep 9, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5962705A | Process for preparing derivatives of the taxoid family | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5681970A | Method for the preparation of .beta.-phenylisoserine derivatives | Chemistry; Metallurgy | 19 | Expired |
| US5684159A | L-tartaric acid salt of a (1R) diastereomer of a 2-azadihydroxybicyclo2.2.1!heptane compound and the preparation of 2-azabicyclo2.2.1!heptane compounds | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5631383A | Derivatives of 2-azabicyclo[2.2.1]heptane, their preparation and their application | Chemistry; Metallurgy | 8 | Expired |
| US6429315B1 | Process for preparing N6-substituted adenosine derivatives | Chemistry; Metallurgy | 7 | Expired |
| US5670649A | Derivatives of 2-azabicyclo2.2.1!heptane, their preparation and their application | Chemistry; Metallurgy | 4 | Expired |
| US6127550A | Stereospecific preparation of chiral 1-aryl-and 1-heteroaryl-2-substituted ethyl-2-amines | Chemistry; Metallurgy | 4 | Expired |
| US5808093A | L-tartaric acid salt of a (1R) diastereomer of a 2-azadihydroxybicyclo2.2.1!heptane compound and the preparation of 2-azabicyclo2.2.1!heptane compounds | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5347039A | Process for the preparation of derivatives of 3,5-dihydroxypentanoic acid | Chemistry; Metallurgy | 2 | Expired |
| US6353096B1 | Process of use in converting the 4″(S)-OH functional group of the cladinose unit of an azamacrolide to 4″(R)-NH2 | Chemistry; Metallurgy | 2 | Expired |
| US5886192A | L-tartaric acid salt of a (1R) diastereomer of a 2-azadihydroxybicyclo2.2.1!heptane compound and the preparation of 2-azabicyclo2.2.1!heptane compounds | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6562953B2 | Process which is useful for converting the carbonyl function in position 4″ of the cladinose unit of an aza-macrolide into an amine derivative | Chemistry; Metallurgy | 2 | Expired |
| US6143894A | Preparation of [1S-[1A,2B,3B,4A(S*)]]-4-[7-[[1-(3-chloro-2-thienyl)methyl propyl]amino] -3H-imidazo[4,5-B]pyridin-3-yl]-N-ethyl-2,3-dihydroxycyclopentanecarboxa mide | Chemistry; Metallurgy | 1 | Expired |
| US6180759A | Process for the preparation of azacycloalkylakanoyl pseudotetrapeptides | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6235909A | Preparation of is-[1A,2B,3B,4A(S*)]-4-[7-[[1-(3-chloro-2-Thienyl)methyl]amino]-3H-imidazo [4,5-B]pyridin-3-YL]-N-ethyl-2,3-dihydroxycyclopentanecarboxamide | Chemistry; Metallurgy | 1 | Expired |
| US5637753A | Process for the preparation of N-carbonylarylimines useful in the synthesis of therapeutically active taxoids | Chemistry; Metallurgy | 1 | Expired |
| US5831096A | L-tartaric acid salt of a (1R) diastereomer of a 2-azadihydroxybicyclo2.2.1!heptane compound and the preparation of 2-azabicyclo2.2.1! heptane compounds | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6433172B1 | Steroespecific preparation of chiral 1-aryl- and 1-heteroaryl-2-substituted ethyl-2-amines | Chemistry; Metallurgy | 0 | Expired |
| US6590084B2 | Process for preparing and isolating 9-deoxo-9 (Z)-hydroxyiminoerythromycin A | Chemistry; Metallurgy | 0 | Expired |
| US5912365A | Derivatives of 2-azabicyclo2.2.1! heptane, their preparation and their application | Chemistry; Metallurgy | 0 | Expired |
| US6482931B2 | Process for the preparation of 9-deoxo-8a-aza-(8a-alkyl)-8a-homoerythromycin A derivatives from 9-deoxo-9 (Z)-hydroxyiminoerythromycin A | Chemistry; Metallurgy | 0 | Expired |
| US6486320B2 | Preparation of camptothecin and of its derivatives | Chemistry; Metallurgy | 0 | Expired |
| US5688954A | Process for the preparation of substituted thiopyran-1-oxides | Chemistry; Metallurgy | 0 | Expired |
| USRE40040E1 | Process of use in converting the 4″(S)-OH functional group of the cladinose unit of an azamacrolide to 4″(R)-NH2 | General | 0 | Expired |
| US5624933A | Process for the preparation of a 6-fluoro-2-halo-quinoline | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.