Patents by Inventor Robert N. Boyes

Robert N. Boyes 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).

  • Pharmaceutical formulations comprising microcapsules
    Patent number: 5384133
    Abstract: Pharmaceutical formulations comprise (i) microcapsules which consist essentially of a biocompatible polymeric wall material encapsulating a drug, and (ii) a lipid soluble surfactant which is mixed with the microcapsules or is incorporated within or coats the wall material of the microcapsules. Such formulations may be presented as an aerosol or dry powder for inhalation. Microcapsules with surfactant incorporated in the wall material may be suspended in a pharmaceutically acceptable water-immiscible oil and the resulting suspension emulsified in an aqueous medium to obtain a formulation for oral administration.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: January 24, 1995
    Assignee: Innovata Biomed Limited
    Inventors: Robert N. Boyes, Thomas R. Tice, Richard M. Gilley, Kenneth L. Pledger
  • Primary aminoacylanilides
    Patent number: 4237068
    Abstract: Primary amino acylanilides of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, methyl, ethyl and propyl, R.sub.2 is selected from the group consisting of methyl, ethyl, chlorine, methoxy and ethoxy, R.sub.3 is selected from the group consisting of hydrogen and methyl, R.sub.4 is selected from the group consisting of hydrogen, methyl, and a C.sub.1 -C.sub.4 alkoxy group, R.sub.6 is selected from the group consisting of methyl, ethyl, chlorine, methoxy and ethoxy, R.sub.7 is hydrogen, methyl or ethyl, R.sub.8 is hydrogen, R.sub.9 is hydrogen, methyl or ethyl, R.sub.10 is hydrogen, and n is 0 or 1, with the provisions that(a) when n is 0, R.sub.8 can also be methyl;(b) when n is 1, and R.sub.7 is hydrogen, and R.sub.9 is hydrogen or methyl, then R.sub.10 can also be methyl;(c) when R.sub.1 is hydrogen, R.sub.2 is methyl, R.sub.3 is hydrogen, R.sub.6 is methyl, R.sub.7 is hydrogen, R.sub.8 is hydrogen, and n is 0, then R.sub.4 can be ethoxy or propoxy only;(d) when R.sub.
    Type: Grant
    Filed: August 1, 1978
    Date of Patent: December 2, 1980
    Assignee: Astra Pharmaceutical Products, Inc.
    Inventors: Robert N. Boyes, Benjamin R. Duce, Emil R. Smith, Eugene W. Byrnes
  • Primary aminoacylanilides, methods of making the same and use as antiarrhythmic drugs
    Patent number: 4218477
    Abstract: Primary amino acylanilides of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, methyl, ethyl and propyl, R.sub.2 is selected from the group consisting of methyl, ethyl, chlorine, methoxy and ethoxy, R.sub.3 is selected from the group consisting of hydrogen and methyl, R.sub.4 is selected from the group consisting of hydrogen, methyl, and a C.sub.1 -C.sub.4 alkoxy group, R.sub.6 is selected from the group consisting of methyl, ethyl, chlorine, methoxy and ethoxy, R.sub.7 is hydrogen, methyl or ethyl, R.sub.8 is hydrogen, R.sub.9 is hydrogen, methyl or ethyl, R.sub.10 is hydrogen, and n is 0 or 1, with the provisions that(a) when n is 0, R.sub.8 can also be methyl;(b) when n is 1, and R.sub.7 is hydrogen, and R.sub.9 is hydrogen or methyl, then R.sub.10 can also be methyl;(c) when R.sub.1 is hydrogen, R.sub.2 is methyl, R.sub.3 is hydrogen, R.sub.6 is methyl, R.sub.7 is hydrogen, R.sub.8 is hydrogen, and n is 0, then R.sub.4 can be ethoxy or propoxy only;(d) when R.sub.
    Type: Grant
    Filed: January 22, 1976
    Date of Patent: August 19, 1980
    Assignee: Astra Pharmaceutical Products, Inc.
    Inventors: Robert N. Boyes, Benjamin R. Duce, Emil R. Smith, Eugene W. Byrnes