Inventor
HALL DARREN
CA3 patents
⚠️ This page may combine multiple inventors who share the name “HALL DARREN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BRANTFORD CHEM INC
2 patentsUS5675006AOct 7, 1997
Methods of making ureas and guanidines, including, terazosin, prazosin, doxazosin, tiodazosin, trimazosin, quinazosin, and bunazosin (exemplary of 2- substituted quinazoline compounds), and meobentine, and bethanidine and intermediates therefor
BRANTFORD CHEM INC4 citations71
US5686612ANov 11, 1997
Methods of making ureas and guanidines, including terazosin, prazosin, doxazosin, tiodazosin, trimazosin, quinazosin, and bunazosin (exemplary of 2-substituted quinazoline compounds), and meobentine, and bethanidine and intermediates thereof
BRANTFORD CHEM INC3 citations60