Frank Xing Chen
22Patents
5h-index
59Co-inventors
72Inventor score
Filing activity: Nov 18, 1999 → Oct 29, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9174989B2 | Process for making CGRP receptor antagonists | Chemistry; Metallurgy | 15 | Active |
| US9850246B2 | Process for making CGRP receptor antagonists | Chemistry; Metallurgy | 13 | Active |
| US10106541B2 | Intermediates for preparing CGRP receptor antagonists | Chemistry; Metallurgy | 12 | Active |
| US7605275B2 | Exo- and diastereo- selective syntheses of himbacine analogs | Emerging Cross-Sectional Technologies | 8 | Active |
| US6288233A | Enantioselective alkylation of tricyclic compounds | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6307048A | Enantioselective alkylation of tricyclic compounds | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7528263B2 | Oxidation process for the preparation of N-[3-amino-1-(cyclobutylmethyl)-2,3-dioxopropyl]-3-{N-[(tert-butylamino)carbonyl]-3-methyl-L-valyl}-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamide and related compounds | Human Necessities | 2 | Active |
| US6372909B1 | Synthesis of intermediates useful in preparing tricyclic compounds | Chemistry; Metallurgy | 2 | Expired |
| US9249144B2 | Process and intermediates for the synthesis of 8-[{1-(3,5-bis-(trifluoromethyl)phenyl)-ethoxy}-methyl]-8-phenyl-1,7-diaza-spiro[4.5]decan-2-one compounds | Chemistry; Metallurgy | 1 | Active |
| US7723531B2 | Process for the preparation of 6,6-dimethyl-3-azabicyclo-[3.1.0]-hexane compounds and enantiomeric salts thereof | Chemistry; Metallurgy | 1 | Active |
| US11161834B2 | Methods of manufacturing of niraparib | Emerging Cross-Sectional Technologies | 1 | Active |
| US11629137B2 | Methods of manufacturing of niraparib | Emerging Cross-Sectional Technologies | 0 | Active |
| US8076479B2 | Process and intermediates for the synthesis of (3-alkyl-5-piperidin-1-yl-3,3a-dihydro-pyrazolo[1,5-a]pyrimidin-7-yl)-amino derivatives and intermediates | Chemistry; Metallurgy | 0 | Active |
| US9822116B2 | Process and intermediates for the synthesis of 8-[{1-(3,5-bis-(trifluoromethyl)phenyl)-ethoxy}-methyl]-8-phenyl-1,7-diaza-spiro[4.5]decan-2-one compounds | Chemistry; Metallurgy | 0 | Active |
| US7582763B2 | Enantioselective process | Chemistry; Metallurgy | 0 | Active |
| US8198463B2 | Process for the preparation of 6,6-dimethyl-3-azabicyclo-[3.3.0]-hexane compounds and enantiomeric salts thereof | Chemistry; Metallurgy | 0 | Active |
| US7786306B2 | Process for resolving chiral piperidine alcohol and process for synthesis of pyrazolo[1,5-a] pyrimidine derivatives using same | Chemistry; Metallurgy | 0 | Active |
| US6495689B2 | Synthesis of intermediates useful in preparing tricyclic compounds | Chemistry; Metallurgy | 0 | Expired |
| US7049440B2 | Enantioselective process | Chemistry; Metallurgy | 0 | Expired |
| US7989653B2 | Exo- and diastereo-selective syntheses of himbacine analogs | Emerging Cross-Sectional Technologies | 0 | Active |
| US8258319B2 | Exo- and diastereo- selective synthesis of himbacine analogs | Emerging Cross-Sectional Technologies | 0 | Active |
| US8618314B2 | Exo- and diastereo-selective synthesis of himbacine analogs | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.