Patents by Inventor Stephen W. Horgan

Stephen W. Horgan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tetrahydro and imidazoline antisecretory compounds
    Patent number: 4260626
    Abstract: Novel antisecretory compounds of the formula: ##STR1## wherein R is ##STR2## and pharmaceutically acceptable salts, diasteriomers and individual optical isomers thereof.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: April 7, 1981
    Assignee: Richardson-Merrell Inc.
    Inventors: Albert A. Carr, Hsien C. Cheng, Stephen W. Horgan, James K. Woodward
  • Process for preparing 2-(2,2-dicyclohexylethyl)piperidine
    Patent number: 4191828
    Abstract: 2-(2,2-Dicyclohexylethyl)piperidine is prepared via the catalytic hydrogenation of 2-(2,2-diphenylethenyl)pyridine in a single step. High yields are obtained using a rhodium supported catalyst.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: March 4, 1980
    Assignee: Richardson-Merrell Inc.
    Inventors: Stephen W. Horgan, Frank P. Palopoli, David L. Wenstrup
  • Process for preparing 2-(2,2-dicyclohexylethyl)piperidine
    Patent number: 4069222
    Abstract: 2-(2,2-Dicyclohexylethyl)piperidine is prepared via the catalytic hydrogenation of 2-(2,2-diphenylethenyl)pyridine in a single step. High yields are obtained using an anhydrous Raney nickel catalyst.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: January 17, 1978
    Assignee: Richardson-Merrell Inc.
    Inventors: Stephen W. Horgan, Frank P. Palopoli, Edward J. Schwoegler
  • Bis-basic ketones of fluorene and fluorenone
    Patent number: 4064347
    Abstract: The novel bis-basic ketones of fluorene and fluorenone of the present invention have antiviral activity when administered orally and parenterally. These compounds are represented by the following formula: ##STR1## wherein Z is oxygen or H.sub.2 ; each A is a straight or branched alkylene chain having from 1 to about 6 carbon atoms; and each Y isA. the group ##STR2## wherein R.sup.1 and R.sup.2 are individually hydrogen, (lower)alkyl having from 1 to about 6 carbon atoms, cycloalkyl having from 3 to 6 carbon atoms, alkenyl of from 3 to 6 carbon atoms and having the vinyl unsaturation in other than the 1-position of the alkenyl group; orB. the group ##STR3## WHEREIN N IS A WHOLE INTEGER FROM 4 TO 6, AND R.sup.3 is hydrogen, (lower)alkyl of 1 to about 4 carbon atoms, phenyl, or benzyl and can be linked to any one of the carbon atoms of the heterocyclic group; orC. the group ##STR4## wherein X is oxygen or NR.sup.4, and R.sup.4 is hydrogen or (lower)alkyl of from 1 to about 4 carbon atoms; orD.
    Type: Grant
    Filed: February 2, 1973
    Date of Patent: December 20, 1977
    Assignee: Richardson-Merrell Inc.
    Inventors: Robert W. Fleming, Arthur D. Sill, William L. Albrecht, Stephen W. Horgan
  • Fluorene compounds
    Patent number: 3983124
    Abstract: Novel 2,7-bis-basic derivatives of fluorene, 9-fluorenol and 9-fluorenone, their preparation and use for the prevention and inhibition of virus infections are disclosed.
    Type: Grant
    Filed: December 21, 1972
    Date of Patent: September 28, 1976
    Assignee: Richardson-Merrell Inc.
    Inventors: William L. Albrecht, Stephen W. Horgan, Arthur D. Sill, Robert W. Fleming