Patents by Inventor Daniel Ambrose Dunnigan

Daniel Ambrose Dunnigan 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).

  • Patent number: 4112097
    Abstract: Described are antihypertensive agents selected from the class consisting of 2[4(tetrahydro-2-furoyl)-piperazino]-4-amino-6,7-dimethoxyquinazoline and 2-[4(tetrahydropyran-2-carbonyl)-piperazinyl]-4-amino-6,7-dimethoxyquinazo line, and pharmaceutically acceptable acid addition salts thereof. The compounds are highly water soluble and can be administered in time release form as well as parenterally, including intravenously.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: September 5, 1978
    Assignee: Abbott Laboratories
    Inventors: Martin Winn, Jaroslav Kyncl, Daniel Ambrose Dunnigan, Peter Hadley Jones
  • Patent number: 4101677
    Abstract: Covers a compound selected from the group consisting of a member of the formula: ##STR1## wherein R.sub.1 is a radial selected from the group consisting of higher branched or straight chain alkyl and cycloalkyl radicals wherein said R.sub.1 radical contains at least six carbon atoms, R.sub.2 is a radical selected from the group consisting of hydrogen, loweralkyl and loweralkanol radicals, wherein said R.sub.2 radical contains 1 - 3 carbon atoms, and R.sub.3 is methoxy; and nontoxic pharmaceutically acceptable acid addition salts thereof. Also covers the use of said compound as a local anesthetic and pharmaceutical compositions comprising said above compounds as the active ingredient.
    Type: Grant
    Filed: June 15, 1977
    Date of Patent: July 18, 1978
    Assignee: Abbott Laboratories
    Inventors: Daniel Ambrose Dunnigan, Adolph Oscar Geiszler, James Brooks Holland
  • Patent number: 4057582
    Abstract: Covers a compound selected from the group consisting of a member of the formula: ##STR1## where R.sub.1 is a radical selected from the group consisting of higher branched or straight chain alkyl and cycloalkyl radicals wherein said R.sub.1 radical contains at least six carbon atoms, R.sub.2 is a radical selected from the group consisting of hydrogen, loweralkyl and loweralkanol radicals, wherein said R.sub.2 radical contains 1-3 carbon atoms, and R.sub.3 is methoxy; and nontoxic pharmaceutically acceptable acid addition salts thereof. Also covers the use of said compound as a local anesthetic and pharmaceutical compositions comprising said above compounds as the active ingredient.
    Type: Grant
    Filed: September 26, 1973
    Date of Patent: November 8, 1977
    Assignee: Abbott Laboratories
    Inventors: Daniel Ambrose Dunnigan, Adolph Oscar Geiszler, James Brooks Holland
  • Patent number: 4051190
    Abstract: A two-step preparation of 3-arylpropyl chloride from the corresponding 2-chloropropiophenone by hydrogenation using two specific catalysts in series.
    Type: Grant
    Filed: January 30, 1976
    Date of Patent: September 27, 1977
    Assignee: Abbott Laboratories
    Inventor: Daniel Ambrose Dunnigan
  • Patent number: 4044135
    Abstract: Described are the compounds 2[4(tetrahydro-2-furoyl)-hexahydro-1,4-diazepinyl-1]-4-amino-6,7-dimethoxy quinazoline and pharmaceutically acceptable acid addition salts thereof. The compounds are useful as antihypertensive agents.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: August 23, 1977
    Assignee: Abbott Laboratories
    Inventors: Martin Winn, Jaroslav Kyncl, Daniel Ambrose Dunnigan, Peter Handley Jones
  • Patent number: 4026894
    Abstract: Described are antihypertensive agents selected from the class consisting of 2[4(tetrahydro-2-furoyl)-piperazino]-4-amino-6,7-dimethoxyquinazoline and 2-[4(tetrahydropyran-2-carbonyl)-piperazinyl]-4-amino-6,7-dimethoxyquinazo line, and pharmaceutically acceptable acid addition salts thereof. The compounds are highly water soluble and can be administered in time release form as well as parenterally, including intravenously.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: May 31, 1977
    Assignee: Abbott Laboratories
    Inventors: Martin Winn, Jaroslav Kyncl, Daniel Ambrose Dunnigan, Peter Hadley Jones