Patents by Inventor Michael John Broadhurst

Michael John Broadhurst 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).

  • Publication number: 20120319852
    Abstract: A device that attaches to a bag provides an indication when the volume of matter in the bag reaches a predetermined value. The device includes a detachment detector that provides a detachment signal when the device detaches from the bag. First and second arms may be pivotally connected to each other and biased in a direction towards each other adjacent first ends of the arms. The first and second arms in use engage opposing sides of the bag. At least one bag level indicator provides a bag level signal when the volume of matter in the bag reaches the predetermined value.
    Type: Application
    Filed: November 19, 2010
    Publication date: December 20, 2012
    Applicant: The New Castle Upon Tyne Hospitals NHS Foundation Trust
    Inventors: Charlotte Ruth Platten, Robert Tapper, Michael John Broadhurst
  • Patent number: 6867299
    Abstract: Disclosed are compounds of the general formula which are oxamide derivatives and inhibitors of the enzyme inosine monophosphate dehydrogenase (IMPDH).
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: March 15, 2005
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael John Broadhurst, Christopher Huw Hill, David Nigel Hurst, Philip Stephen Jones, Paul Brittain Kay, Ian Reginald Kilford, Robert Murray McKinnell
  • Patent number: 6281363
    Abstract: Hydrazine derivatives and their pharmaceutically acceptable salts useful for the treatment of inflammatory and autoimmune diseases, osteoarthritis, respiratory diseases, tumors, cachexia, cardiovascular disease, fever, hemorrhage, and sepsis.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: August 28, 2001
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael John Broadhurst, William Henry Johnson, Daryl Simon Walter
  • Patent number: 6265446
    Abstract: Hydrazine derivatives of the formula wherein R1 represents lower alkyl, lower alkenyl, lower cycloalkyl, lower cycloalkyl-lower alkyl, aryl or aryl-lower alkyl, R2 represents heterocyclyl or NR5R6, R3 represents hydrogen, lower alkyl, halo-lower alkyl, cyano-lower alkyl, hydroxy-lower alkyl, amino-lower alkyl, lower alkoxy-lower alkyl, lower alkoxycarbonyl-lower alkyl, lower cycloalkyl-lower alkyl, aryl-lower alkyl, heterocyclyl-lower alkyl, heterocyclylcarbonyl-lower alkyl, lower alkenyl, lower alkynyl, lower cycloalkyl, aryl, heteroaryl or aryl-lower alkyl, R4 represents lower alkyl, lower alkenyl, lower cycloalkyl, lower cycloalkyl-lower alkyl or a grouping of the formula -Z-aryl, -Z-heterocyclyl or —(CH2)n—, CH═CR7R8, R5 and R6 each independently represent hydrogen or lower alkyl, R7 and R8 each independently represent hydrogen or lower alkyl or R7 and R8 together represent lower alkylene in which one CH2 group is optionally replaced by a hetero atom, X and Z each repres
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: July 24, 2001
    Assignee: Hoffmann-La Roche Inc..
    Inventors: Michael John Broadhurst, William Henry Johnson, Daryl Simon Walter
  • Patent number: 6239151
    Abstract: The invention provides hydrazine derivatives of the formula wherein R1 is lower alkyl, lower alkenyl, lower cycloalkyl, lower cycloalkyl-lower alkyl, aryl or aryl-lower alkyl; R2 is an acyl group derived from an &agr;-, &bgr;-, &ggr;- or &dgr;-(amino, hydroxy or thiol)carboxylic acid in which the amino, hydroxy or thiol group is optionally lower alkylated or the amino group is optionally acylated, sulphonylated or amidated and in which any functional group present in a side-chain is optionally protected, or a group of the formula Het(CH2)mCO; R3 is hydrogen, lower alkyl, halo-lower alkyl, cyano-lower alkyl, amino-lower alkyl, hydroxy-lower alkyl, lower alkoxy-lower alkyl, lower alkoxycarbonyl-lower alkyl, lower cycloalkyl-lower alkyl, aryl-lower alkyl, heterocyclyl-lower alkyl, heterocyclylcarbonyl-lower alkyl, lower alkenyl, lower alkynyl, lower cycloalkyl, aryl-lower alkenyl, aryl or heterocyclyl; R4 is lower alkyl, lower alkenyl, lower cycloalkyl, lower cycloalkyl-lower alkyl or a groupin
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: May 29, 2001
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael John Broadhurst, William Henry Johnson, Daryl Simon Walter
  • Patent number: 6235787
    Abstract: Hydrazine derivatives of the formula wherein Y is CO or SO2; R1 is lower alkyl, lower alkenyl, lower cycloalkyl, lower cycloalkyl-lower alkyl, aryl or aryl-lower alkyl; R2 is lower alkyl, halo-lower alkyl, aryl-lower alkyl, aryl-lower alkenyl or aryl when Y is SO2 and is lower alkyl, halo-lower alkyl, lower alkoxy, lower alkoxycarbonyl, acyl, lower cycloalkyl, aryl, aryl-lower alkyl, aryl-lower alkoxy or NR5R6 when Y is CO; and R3 is hydrogen, lower alkyl optionally substituted by cyano, amino, hydroxy, lower alkoxy, lower alkoxycarbonyl, heterocyclyl or heterocyclylcarbonyl, lower alkenyl, lower alkynyl, lower cycloalkyl, lower cycloalkyl-lower alkyl, aryl-lower alkyl, aryl-lower alkenyl, aryl or heterocyclyl; or R2 and R3 together form the residue of a 5-, 6- or 7-membered cyclic amide, cyclic imide, cyclic sulphonamide or cyclic urethane group; R4 is lower alkyl, hydroxy-lower alkyl, lower alkenyl, lower cycloalkyl, lower cycloalkyl-lower alkyl or a group of the formula X-aryl, X-heteroar
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: May 22, 2001
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael John Broadhurst, William Henry Johnson, Daryl Simon Walter
  • Patent number: 6066662
    Abstract: The invention provides hydroxylamine derivatives of formula (I) wherein A, R.sup.1, R.sup.2 and R.sup.3 have the significance given in the description, which are matrix metalloproteinase inhibitors and which also prevent TNF release. They are therefore useful for the control or prevention of degenerative joints diseases such as rheumatoid arthritis and osteoarthritis or for the treatment of invasive tumours, atherosclerosis or multiple sclerosis. They can be manufactured according to generally known methods.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: May 23, 2000
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael John Broadhurst, Paul Anthony Brown, William Henry Johnson
  • Patent number: 5731441
    Abstract: The invention provides hydroxamic acid derivatives of the general formula ##STR1## wherein R.sup.1 represents cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl; R.sup.2 represents a saturated 5- to 8-membered monocyclic or bridged N-heterocyclic ring, which N-heterocyclic ring is attached via the N atom and when it is monocyclic, optionally contains NR.sup.4, O, S, SO or SO.sub.2 as a ring member and/or is optionally substituted on one or more C atoms by hydroxy, lower alkyl, lower alkoxy, oxo, ketalized oxo, amino, mono(lower alkyl)amino, di(lower alkyl)amino,carboxy, lower alkoxycarbonyl, hydroxy-methyl, lower alkoxymethyl, carbamoyl, mono(lower alkyl)-carbamoyl, di(lower alkyl)carbamoyl or hydroxyimino; R.sup.3 represents a 5- or 6-membered N-heterocyclic ring which (a) is attached via the N atom, (b) optionally contains N, O and/or S, SO or SO.sub.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: March 24, 1998
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael John Broadhurst, Paul Anthony Brown, William Henry Johnson
  • Patent number: 5710167
    Abstract: The invention provides hydroxamic acid derivatives of the general formula ##STR1## wherein R.sup.1 represents cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl; R.sup.2 represents a saturated 5- to 8-membered monocyclic or bridged N-heterocyclic ring, which N-heterocyclic ring is attached via the N atom and when it is monocyclic, optionally contains NR.sup.4, O, S, SO or SO.sub.2 as a ring member and/or is optionally substituted on one or more C atoms by hydroxy, lower alkyl, lower alkoxy, oxo, ketalized oxo, amino, mono(lower alkyl)amino, di(lower alkyl)amino, carboxy, lower alkoxycarbonyl, hydroxy-methyl, lower alkoxymethyl, carbamoyl, mono(lower alkyl)-carbamoyl, di(lower alkyl)carbamoyl or hydroxy-imino; R.sup.3 represents a 5- or 6-membered N-heterocyclic ring which (a) is attached via the N atom, (b) optionally contains N, O and/or S, SO or SO.sub.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: January 20, 1998
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael John Broadhurst, Paul Anthony Brown, William Henry Johnson
  • Patent number: 5698690
    Abstract: The invention provides hydroxamic acid derivatives of the general formula ##STR1## wherein Bz represents benzyl; R.sup.1 represents cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl; R.sup.2 represents a saturated 5- to 8-membered monocyclic or bridged N-heterocyclic ring, which N-heterocyclic ring is attached via the N atom and when it is monocyclic, optionally contains NR.sup.4, O, S, SO or SO.sub.2 as a ring member and/or is optionally substituted on one or more C atoms by hydroxy, lower alkyl, lower alkoxy, oxo, ketalized oxo, amino, mono(lower alkyl)amino, di(lower alkyl)amino,carboxy, lower alkoxycarbonyl, hydroxy-methyl, lower alkoxymethyl, carbamoyl, mono(lower alkyl)-carbamoyl, di(lower alkyl)carbamoyl or hydroxy-imino; R.sup.3 represents a 5- or 6-membered N-heterocyclic ring which (a) is attached via the N atom, (b) optionally contains N, O and/or S, SO or SO.sub.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: December 16, 1997
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael John Broadhurst, Paul Anthony Brown, William Henry Johnson