Gregg Feigelson
31Patents
5h-index
48Co-inventors
69Inventor score
Filing activity: Apr 10, 1990 → Jan 14, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7297795B2 | Process for preparation of 4-amino-3-quinolinecarbonitriles | Chemistry; Metallurgy | 24 | Expired |
| US5602118A | 2-thiosubstituted carbapenems | Emerging Cross-Sectional Technologies | 14 | Expired |
| US9309220B2 | Processes for the preparation of (S)-3-(4- (4-(morpholinomethyl)benzyl)oxy)-1-oxoisoindolin-2-yl)piperidine-2,6-dione and pharmaceutically acceptable forms thereof | Chemistry; Metallurgy | 11 | Active |
| US10894796B2 | MK2 inhibitors, synthesis thereof, and intermediates thereto | Chemistry; Metallurgy | 8 | Active |
| US6713626B2 | Process for synthesizing N-aryl piperazines with chiral N′-1-[benzoyl(2-pyridyl)amino]-2-propane substitution | Chemistry; Metallurgy | 6 | Expired |
| US5068232A | Novel 2-substituted alkyl-3-carboxy carbapenems as antibiotics and a method of producing them | Chemistry; Metallurgy | 4 | Expired |
| US6784294B2 | Preparation of N1-(2′-pyridyl)-1,2-propanediamine sulfamic acid and its use in the synthesis of biologically active piperazines | Chemistry; Metallurgy | 4 | Expired |
| US6693197B2 | Process for the synthesis of derivatives of 2,3-dihydro-1,4-dioxino- [2,3-f] quinoline | Human Necessities | 3 | Expired |
| US5480987A | 2-substituted alkyl-3-carboxy carbapenems as antibiotics and a method of producing them | Chemistry; Metallurgy | 3 | Expired |
| US9133161B2 | Processes for preparing isoindoline-1,3-dione compounds | Chemistry; Metallurgy | 2 | Active |
| US7019137B2 | Process for making chiral 1,4-disubstituted piperazines | Chemistry; Metallurgy | 2 | Expired |
| US7091349B2 | Process for synthesizing N-aryl piperazines with chiral N′-1-[benzoyl(2-pyridyl)amino]-2-propane substitution | Chemistry; Metallurgy | 2 | Expired |
| US7767678B2 | Crystalline forms of 4-[(2,4-dichloro-5-methoxyphenyl)amino]-6-methoxy-7-[3-(4-methyl-1-piperazinyl)propoxy]-3-quinolinecarbonitrile and methods of preparing the same | Human Necessities | 2 | Active |
| US5700930A | 4-substituted azetidinones as precursors to 2-substituted-3-carboxy carbapenem antibiotics and a method of producing them | Chemistry; Metallurgy | 1 | Expired |
| US11655257B2 | MK2 inhibitors, synthesis thereof, and intermediates thereto | Chemistry; Metallurgy | 1 | Active |
| US5288888A | Process for the synthesis of acetic acid, (dimethoxyphosphinyl) [[1,1-dimethylethyl)dimethylsilyl]-oxy]-, (4-nitrophenyl) methyl ester | Chemistry; Metallurgy | 1 | Expired |
| US5750735A | 2-thiosubstituted carbapenems | Emerging Cross-Sectional Technologies | 1 | Expired |
| US9975872B2 | Processes for the preparation of (s)-3-(4-((4-(morpholinomethyl)benzyl)oxy)-1-oxoisoindolin-2-yl)piperidine-2,6-dione and pharmaceutically acceptable forms thereof | Chemistry; Metallurgy | 1 | Active |
| US5744465A | Method of inhibiting a .beta.-lactamase enzyme by administering novel 2-thiosubstituted carbapenems | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5189158A | 4-substituted azetidinones as precursors to 2-substituted-3-carboxy carbapenem antibiotics and a method of producing them | Chemistry; Metallurgy | 1 | Expired |
| US7256289B2 | Process for making chiral 1,4-disubstituted piperazines | Chemistry; Metallurgy | 0 | Expired |
| US11312699B2 | Processes for preparing 2-(4-chlorophenyl)-N-((2-(2,6-dioxopiperidin-3-yl)-1-oxoisoindolin-5-yl)methyl)-2,2-difluoroacetamide | Chemistry; Metallurgy | 0 | Active |
| US5623081A | Method for producing tetrahydrofuranyl compounds | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5369102A | 2-substituted alkyl-3-carboxy carbopenems as antibiotics and a method of producing them | Chemistry; Metallurgy | 0 | Expired |
| US5656753A | 4-substituted azetidinones as precursors to 2-substituted-3-carboxy carbapenem antibiotics and a method of producing them | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.