Patents Represented by Attorney Lawrence A. Nielsen
  • Patent number: 5466711
    Abstract: A method for treating or preventing a Pneumocystis carinii infection in a mammal by administering a certain naphthoquinone compound or physiologically acceptable salts thereof.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: November 14, 1995
    Assignee: Burroughs Wellcome Co.
    Inventors: Victoria S. Latter, Winston E. Gutteridge, Alan T. Hudson
  • Patent number: 5453510
    Abstract: 1R-cis,1'R-cis isomer of a 2',2'-(3,11-dioxo-4,10-dioxatridecylene)-bis(1,2,3,4-tetrahydro-6, 7-dimethoxy-2-methyl-1-veratrylisoquinolium) said, substantially free from other geometrical and optical isomers thereof. The 1R-cis,1'R-cis isomer has been found to have an advantageous combination of pharmacological properties, notably greater neuromuscular blocking potency, weaker histamine-releasing potency, and at equivalent levels of neuromuscular blockade, fewer potential adverse effects on the autonomic nervous system (sympathetic and parasympathetic blockage), in comparison with the known mixture of geometrical and optical isomers.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: September 26, 1995
    Assignee: Burroughs Wellcome Co.
    Inventors: Derek A. Hill, Geoffrey L. Turner
  • Patent number: 5447956
    Abstract: Use of Methyl N-[6-(3,4,5-trimethoxybenzyloxy)imidazo [1,2-6]pyridazin-2-yl]carbamate or pharmaceutically acceptable salt to treat lymphocytic leukemia is disclosed.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: September 5, 1995
    Assignee: Burroughs Wellcome Co.
    Inventor: Simon T. Hodgson
  • Patent number: 5432166
    Abstract: The use of 1-(.beta.-D-arabinofuranosyl)-5-propynyluracil or a pharmaceutically acceptable salt or physiologically labile ester thereof for lowering serum cholesterol, particularly low density lipoprotein cholesterol levels in a human subject.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: July 11, 1995
    Assignee: Burroughs Wellcome Co.
    Inventors: Richard W. Peck, John Posner, Kenneth Powell
  • Patent number: 5427798
    Abstract: A controlled sustained release tablet having at least one year shelf life and containing bupropion hydrochloride, hydroxypropyl methylcellulose and cysteine hydrochloride or glycine hydrochloride with the tablet having a surface area to volume ratio to effectively control bupropion hydrochloride release in the body.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: June 27, 1995
    Assignee: Burroughs Wellcome Co.
    Inventors: Jennie Sue G. Ludwig, William L. Bass, Jr., Joel E. Sutton, Jr.
  • Patent number: 5422373
    Abstract: Diaryl urea compounds having anti-atherosclerosis activity are disclosed. Preferred compounds include the compounds 1-[4-(1,2-dimethoxyethoxy)benzyl-3-(2,4-dimethoxyphenyl)-l-heptylumea and 1-heptyl-3-(2,4-dimethoxyphenyl)-l-[4-(2-methoxyethoxymethoxy)-benzyl]urea .
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: June 6, 1995
    Assignee: Burroughs Wellcome Co.
    Inventor: Karl W. Franzmann
  • Patent number: 5420156
    Abstract: 1-Ethylphenoxathiin 10,10-dioxide (I) ##STR1## inhibits monoamine oxidase-A and is useful in the treatment of disorders such as depression.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: May 30, 1995
    Assignee: Burroughs Wellcome Co.
    Inventors: Morton Harfenist, Daniel P. C. McGee, Helen L. White, Barrett R. Cooper
  • Patent number: 5399580
    Abstract: Antiviral nucleoside analogues containing a substituted benzimidazole base attached to a carbocyclic ring in place of the conventional sugar residue, particularly those in which the 2-, 5- and 6-positions of the benzimidazole base are substituted by halogen, have activity against hepatitis B virus infections.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: March 21, 1995
    Assignee: Burroughs Wellcome Co.
    Inventor: Susan M. Daluge
  • Patent number: 5395853
    Abstract: The present invention is concerned with compounds of formula (I) ##STR1## wherein m is 0 or 1;W is hydrogen, a C.sub.1-16 straight, branched, or cyclic alkyl group, or a C.sub.2-16 straight, branched, or cyclic alkenyl or alkynyl group, orPh(CH.sub.2).sub.n -- where Ph is phenyl and n is an integer of from 0 to 2, the phenyl group being optionally substituted by one or more atoms or groups independently selected from halogen, hydroxy, nitro, C.sub.1-4 alkoxy and C.sub.1-4 alkyl wherein one or more of the hydrogen atoms in said alkyl group is optionally replaced by halogen, orR.sup.1 NHCO-- where R.sup.1 is hydrogen or a C.sub.1-6 alkyl group, orR.sup.2 CONH-- where R.sup.2 is hydrogen or a C.sub.1-6 alkyl group; ##STR2## Y is --(CH.sub.2).sub.q, where q is an integer of from 1 to 3, or --CH.dbd.CH-- (E or Z);Z is a C.sub.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: March 7, 1995
    Assignee: Burroughs Wellcome Co.
    Inventors: William P. Jackson, Clifford J. Harris, Richard J. Arrowsmith, John G. Dann, Kevin J. O'Connor, Robert F. G. Booth
  • Patent number: 5380759
    Abstract: Methyl N-[6-(3,4,5-trimethoxybenzloxy) imidazo [1,2-6]pyridazin-2-yl]carbamate is disclosed which is used to treat leukemia.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: January 10, 1995
    Assignee: Burroughs Wellcome Co.
    Inventor: Simon T. Hodgson
  • Patent number: 5370880
    Abstract: The invention relates to a controlled release pharmaceutical formulation for oral administration which comprises discrete units comprising acrivastine or a salt thereof coated with a mixture containing:a) a copolymer or polymer containing repeating monomer units selected from alkyl esters of acrylic and methacrylic acids andb) ethyl cellulose,and a process for preparing such formulations.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: December 6, 1994
    Assignee: Burroughs Wellcome Co.
    Inventors: Harry P. Jones, Robert J. Mackey, Michael J. D. Gamlen
  • Patent number: 5371219
    Abstract: Compounds of general formula (I) ##STR1## wherein R.sup.1 represents an optionally substituted carbocyclic or heterocyclic aryl group, or an optionally substituted alkyl, alkenyl, cycloalkyl or cycloalkenyl group; R.sup.2 represents an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkenyl group or an optionally substituted carbocyclic or heterocyclic aryl or aralkyl group; R.sup.3 represents a hydrogen atom or an alkyl group; and either X represents an oxygen or sulphur atom, a group --CH.sub.2 -- or a group NR.sup.4 where R.sup.4 represents a hydrogen atom of a C.sub.1-4 alkyl group; and Y represents a group --CH.sub.2 -- or --CH.sub.2 CH.sub.2 -- or X--Y together represent the group --CH.dbd.CH--; and salts and physiologically functional derivatives thereof are useful in the treatment of tumours. Processes for preparing the compounds, intermediates useful in their preparation, pharmaceutical compositions containing them and their use in the treatment of tumours are also described.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: December 6, 1994
    Assignee: Burroughs Wellcome Co.
    Inventor: Simon T. Hodgson
  • Patent number: 5358970
    Abstract: This application discloses a method of inhibiting degradation of the antidepressant bupropion hydrochloride in a solid pharmaceutical formulation, so that the pharmaceutical formulation will maintain at least 80% of its initial bupropion potency after one year.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: October 25, 1994
    Assignee: Burroughs Wellcome Co.
    Inventors: Michael D. Ruff, Sanyasi R. Kalidindi, Joel E. Sutton, Jr.
  • Patent number: 5318974
    Abstract: The present invention relates to amino acid esters of pyrimidine and purine nucleosides containing an acyclic side chain, and their use in medical therapy, particularly the treatment of herpes virus infections. Also provided are pharmaceutical formulations and processes for the preparation of compounds according to the invention.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: June 7, 1994
    Assignee: Burroughs Wellcome Co.
    Inventor: Lilia M. Beauchamp
  • Patent number: 5310762
    Abstract: A method for treating or preventing a Pneumocystis carinii infection in a mammal by administering a certain naphthoquinone compound or physiologically acceptable salts thereof.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: May 10, 1994
    Assignee: Burroughs Wellcome Co.
    Inventors: Victoria S. Latter, Winston E. Gutteridge, Alan T. Hudson
  • Patent number: 5290814
    Abstract: The present invention is concerned with compounds of formula (I) ##STR1## wherein m is 0 or 1;W is hydrogen, a C.sub.1-16 straight, branched, or cyclic alkyl group, or a C.sub.2-16 straight, branched, or cyclic alkenyl or alkynyl group, or Ph(CH.sub.2).sub.n -- where Ph is phenyl and n is an integer of from 0 to 2, the phenyl group being optionally substituted by one or more atoms or groups independently selected from halogen, hydroxy, nitro, C.sub.1-4 alkoxy and C.sub.1-4 alkyl wherein one or more of the hydrogen atoms in said alkyl group is optionally replaced by halogen, or R.sup.1 NHCO-- where R.sup.1 is hydrogen or a C.sub.1-6 alkyl group, or R.sup.2 CONH-- where R.sup.2 is hydrogen or a C.sub.1-6 alkyl group; X is ##STR2## where A is halogen; Y is --(CH.sub.2).sub.q, where q is an integer of from 1 to 3, or --CH.dbd.CH-- (E or Z);Z is a C.sub.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: March 1, 1994
    Assignee: Burroughs Wellcome Co.
    Inventors: William P. Jackson, Clifford J. Harris, Richard J. Arrowsmith, John G. Dann, Kevin J. O'Connor, Robert F. G. Booth
  • Patent number: 5241107
    Abstract: The present invention relates to compounds of formula (I)ArCH.sub.2 R.sup.1 (I)or a monomethyl or monoethyl ether thereof (the compound of formula (I) including these ethers may contain no more than 30 carbon atoms in total); ethers, esters, thereof; acid addition salts thereof; wherein Ar is a C.sub.15-18 fused tetracarbocyclic ring system containing 3 or 4 aromatic rings or a C.sub.17-22 fused pentacarbocyclic ring system containing 4, or 5 aromatic rings, or a substituted derivative thereof; the ring system Ar should be planar or deviate only slightly from planarity. Thus, the ring system contains a maximum of two non-aromatic carbon atoms which may be in the same ring, in which case they are adjacent, or in different rings;Ar is not perylene, fluoranthene, chrysene, pyrene, or triphenylene;R.sup.1 contains not more than eight carbon atoms and is a group ##STR1## wherein m is 0 or 1; R.sup.5 is hydrogen;R.sup.6 and R.sup.7 are the same or different and each is hydrogen or C.sub.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: August 31, 1993
    Assignee: Burroughs Wellcome Co.
    Inventor: Kenneth W. Bair
  • Patent number: 5240937
    Abstract: This invention describes the preparation and use of anticonvulsant agents. In particular, triazolopyridine compounds are described which have utility in the treatment of epilepsy in mammals.
    Type: Grant
    Filed: May 1, 1992
    Date of Patent: August 31, 1993
    Assignee: Burroughs Wellcome Co.
    Inventor: James L. Kelley
  • Patent number: D346102
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: April 19, 1994
    Assignee: Burroughs Wellcome Co.
    Inventor: Brian L. Ogden
  • Patent number: D376847
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: December 24, 1996
    Assignee: Burroughs Wellcome Co.
    Inventors: Martin R. Alden, Alexander McCall