Patents Assigned to Celltech Therapeutics Limited
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Patent number: 7105160Abstract: Hybrid proteins are described which comprise one or more antigen-binding antibody fragments covalently linked to one or more serum carrier proteins. The hybrid proteins can bind antigens, have a long half-life in vivo and can be used in medicine for therapy and diagnosis.Type: GrantFiled: November 10, 1999Date of Patent: September 12, 2006Assignee: Celltech Therapeutics LimitedInventor: Bryan John Smith
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Patent number: 7052876Abstract: A method of generating novel nucleic acid molecules, by applying a combinatorial approach to the assembly of blocks of nucleic acid sequence, is described. By using restriction endonucleases having different recognition sites but which produce compatible cleavage products, a library of DNA molecules, of varying length and sequence, may be generated in a desired orientation.Type: GrantFiled: April 17, 2000Date of Patent: May 30, 2006Assignee: Celltech Therapeutics LimitedInventors: Helene Margaret Finney, Alastair David Griffiths Lawson
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Patent number: 6642356Abstract: Peptides comprising the amino acid sequence set forth in SEQ ID NO:1 are described wherein the amino acid at position 7 of SEQ ID NO:1 and the amino acid at position 8 of SEQ ID NO:1, which may be the same or different, is each a neutral aliphatic L-ammo acid residue, and protected and reactive derivatives thereof. The peptides may be used as hinge regions in proteins, wherein they are capable of being covalently coupled to achieve dimeric structures, for example, as found in antibodies.Type: GrantFiled: March 17, 2000Date of Patent: November 4, 2003Assignee: Celltech Therapeutics LimitedInventor: David Paul Humphreys
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Patent number: 6632927Abstract: CDR-grafted antibody heavy and light chains comprise acceptor framework and donor antigen binding regions, the heavy chains comprising donor residues at at least one of positions (6, 23) and/or (24, 48) and/or (49, 71) and/or (73, 75) and/or (76) and/or (78) and (88) and/or (91). The CDR-grafted light chains comprise donor residues at at least one of positions (1) and/or (3) and (46) and/or (47) or at at least one of positions (46, 48, 58) and (71). The CDR-grafted antibodies are preferably humanized antibodies, having non human, e.g. rodent, donor and human acceptor frameworks, and may be used for in vivo therapy and diagnosis. A generally applicable protocol is disclosed for obtaining CDR-grafted antibodies.Type: GrantFiled: February 28, 2001Date of Patent: October 14, 2003Assignee: Celltech Therapeutics LimitedInventors: John Robert Adair, Diljeet Singh Athwal, John Spencer Emtage
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Patent number: 6465471Abstract: Compounds of formula (1) are described: in which Het is a heteroaromatic group, Alk1 is an optionally substituted aliphatic or heteroaliphatic chain and R is a carboxylic acid or a derivative thereof. The compounds are able to inhibit the binding of &agr;4 integrins to their ligands and are of use in the prophylaxis and treatment of immune or inflammatory disorders.Type: GrantFiled: July 1, 1999Date of Patent: October 15, 2002Assignee: Celltech Therapeutics LimitedInventors: Graham John Warrellow, John Clifford Head, John Robert Porter, Sarah Catherine Archibald
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Publication number: 20020143011Abstract: Compounds of general formula (1) are described: 1Type: ApplicationFiled: March 14, 2001Publication date: October 3, 2002Applicant: Celltech Therapeutics, LimitedInventors: Graham John Warrellow, Ewan Campbell Boyd, Rikki Peter Alexander
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Patent number: 6407214Abstract: This invention relates to whole antibodies of neutral isotype having specificity for E-selection, process for their preparation (using vectors), pharmaceutical compositions containing them, and their use in therapy (e.g. for inflammatory disorders) and diagnosis. Said antibodies are variants of natural antibodies altered in the Fc region, especially in the CH2 domain, so that the interactions with antibodies Fc receptors and complement are absent or very low.Type: GrantFiled: June 5, 2000Date of Patent: June 18, 2002Assignee: Celltech Therapeutics LimitedInventors: Raymond John Owens, Martyn Kim Robinson
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Publication number: 20020042089Abstract: An effective anti-IL-5 recombinant antibody molecule comprising heavy and/or light chain antigen-binding residues from a donor antibody.Type: ApplicationFiled: May 15, 2001Publication date: April 11, 2002Applicant: Celltech Therapeutics Limited.Inventors: Mark William Bodmer, Diljeet Singh Athwal, John Spencer Emtage
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Patent number: 6369229Abstract: Aromatic amines of formula (1) are described: wherein Az is an optionally substituted monocyclic six-membered nitrogen-containing aromatic group; L1 is a linker atom or group; R is a carboxylic acid or a derivative thereof; and R5 is a group —L2(CH2)tR6 in which L2 is a —N(R7)CO— or —N(R7)CS-group. The compounds are able to inhibit the binding of &agr;4 integrins to their ligands and are of use in the prophylaxis and treatment of immune or inflammatory disorders.Type: GrantFiled: March 30, 2000Date of Patent: April 9, 2002Assignee: Celltech Therapeutics, LimitedInventors: John Clifford Head, Graham John Warrellow, John Robert Porter, Sarah Catherine Archibald
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Publication number: 20020035092Abstract: Propanoic acid derivatives of formula (1) are described:Type: ApplicationFiled: September 18, 2001Publication date: March 21, 2002Applicant: Celltech Therapeutics LimitedInventors: Rikki Peter Alexander, Barry John Langham, James Thomas Reuberson, Emma Louise Trown, Graham John Warrellow
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Patent number: 6348463Abstract: Phenylalanine derivatives of formula (1) are described: in which: Ar1 is an aromatic or heteroaromatic group; L1 is a linker atom or group; R is a carboxylic acid or a derivative thereof; Ar2 is an optionally substituted aromatic or heteroaromatic group; and the salts, solvates, hydrates and N-oxides thereof. The compounds are able to inhibit the binding of &agr;4 integrins to their ligands and are of use in the prophylaxis and treatment of immune or inflammatory disorders.Type: GrantFiled: September 27, 1999Date of Patent: February 19, 2002Assignee: Celltech Therapeutics LimitedInventors: John Clifford Head, John Robert Porter, Graham John Warrellow, Sarah Catherine Archibald, Brian Woodside Hutchinson
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Patent number: 6337335Abstract: Compounds of formula (1) are described: and the salts, solvates, hydrates and N-oxides thereof, in which R1, R2, R3, R4, R5, R6 and R7 have the meanings given in claim 1. The compounds are selective inhibitors of protein kinases, especially src-family protein kinases and are of use in the prophylaxis and treatment of immune diseases, hyperproliferative disorders and other diseases in which inappropriate protein kinase action is believed to have a role.Type: GrantFiled: October 20, 1999Date of Patent: January 8, 2002Assignee: Celltech Therapeutics LimitedInventors: Martin Clive Hutchings, Peter David Davis, David Festus Charles Moffat
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Patent number: 6329362Abstract: Compounds of formula (1) are described: wherein L1 is a covalent bond or a linker atom or group; R is a carboxylic acid (—CO2H) or a derivative threof; R6 and R7 which may be the same or different is each an atom or group —L2(Alk2)tL3R12 in which L2, L3, Alk2 and t are as previously defined and R12 is a hydrogen or halogen atom or an —OR9, —NR9R10, —NO2, —CN, —CO2R9, —CONR9R10, —COR9, —N(R9)COR10, —N(R9)CSR10, —SO2N(R9)(R10), —N(R9)SO2R9, —N(R9)CON(R10)(R11), —N(R9)CSN(R10)(R11), —N(R9)SO2N(R10)(R11), or an optionally substituted aliphatic, heteroaliphatic, cycloaliphatic, heterocycloaliphatic, aromatic or heteroaromatic group provided that R6 and R7 are not both hydrogen atoms and when R7 is a hydrogen atom then R4 and R5 is each a hydrogen or halogen atom or an alkyl, alkoxy or nitro group; and the salts, solvates, hydrates and N-oxides thereof, for use in modulating cell adhesion.Type: GrantFiled: March 16, 1999Date of Patent: December 11, 2001Assignee: Celltech Therapeutics LimitedInventors: Sarah Catherine Archibald, John Clifford Head, Graham John Warrellow, John Robert Porter
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Patent number: 6329372Abstract: Phenylalanine derivatives of formula (1) are described: wherein R is a carboxylic acid or a derivative thereof; L1 is a linker atom or group; Het is an optionally substituted heteroaromatic group; and the salts, solvates, hydrates and N-oxides thereof. The compounds are able to inhibit the binding of alpha4 integrins to their ligands and are of use in the prophylaxis and treatment of immune or inflammatory disorders.Type: GrantFiled: January 26, 1999Date of Patent: December 11, 2001Assignee: Celltech Therapeutics LimitedInventors: John Clifford Head, Sarah Catherine Archibald, Graham John Warrellow, John Robert Porter
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Patent number: 6319922Abstract: Propanoic acid derivatives of formula (1) are described: Ar—X1—Ar1—Z—R (1) in which Ar is a nitrogen base containing group; X1 is linker atom or group; Ar1 is an optionally substituted 5- or 6-membered nitrogen-containing aromatic or non-aromatic monocycle; Z is a group —CH(R13)CH2— [in which R13 is an optionally substituted aliphatic, cycloaliphatic, heteroaliphatic, heterocycloaliphatic, aromatic or heteroaromatic group], —C(R12a)(R13)—CH(R12b)— [in which R12a and R12b together with the carbon atoms to which they are attached form a C3-7cycloalkyl group] or C(R13)═CH—; R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; and the salts, solvates, hydrates and N-oxides thereof. The compounds are able to inhibit the binding of &agr;V integrins to their ligands and are of use in the prophylaxis and treatment of immune or inflammatory disorders.Type: GrantFiled: November 23, 1999Date of Patent: November 20, 2001Assignee: Celltech Therapeutics LimitedInventors: Rikki Peter Alexander, Barry John Langham, James Thomas Reuberson, Emma Louise Trown, Graham John Warrellow
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Patent number: 6316227Abstract: An effective anti-IL-5 recombinant antibody molecule comprising heavy and/or light chain antigen-binding residues from a donor antibody.Type: GrantFiled: July 2, 1999Date of Patent: November 13, 2001Assignee: Celltech Therapeutics LimitedInventors: Mark William Bodmer, Diljeet Singh Athwal, John Spencer Emtage
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Patent number: 6297264Abstract: Compounds of the general formula (1) are described wherein W is a ═N—, and Z and L are described in the specifications. These compounds are phosphodiesterase type IV inhibitors and are useful in the prophylaxis and treatment of diseases such as asthma where an unwanted inflammatory response or muscular spasm is present.Type: GrantFiled: March 26, 1998Date of Patent: October 2, 2001Assignee: Celltech Therapeutics LimitedInventors: John Clifford Head, Graham John Warrellow, Rikki Peter Alexander
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Patent number: 6291199Abstract: Recombinant human phosphodiesterase type IVC is described, and DNA coding for it. Particular conformers of the enzyme are identified, including a R- and S-rolipram stereoselective conformer which is obtainable by expression of human phosphodiesterase type IVC DNA in mammalian or insect cells. The recombinant enzyme may be used in a screen to select a compound capable of modulating the action of the enzyme, or as an immunogen to generate an antibody.Type: GrantFiled: May 15, 1998Date of Patent: September 18, 2001Assignee: Celltech Therapeutics LimitedInventors: Raymond John Owens, Martin John Perry, Simon Mark Lumb
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Patent number: 6284488Abstract: A method for expressing recombinant molecules in bacterial hosts in a defined medium in the absence of antibiotic selection is disclosed. The method uses an expression vector comprising a regulatable promoter by which the production of foreign proteins may be controlled during the growth phase of the culture, and origin of replication maintaining medium vector copy number and a transcriptional promoter.Type: GrantFiled: June 18, 1999Date of Patent: September 4, 2001Assignee: Celltech Therapeutics LimitedInventors: Andrew Neil Charles Weir, Andrew Mountain
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Patent number: 6274577Abstract: Benzodiazapine derivatives of formula (1) are described: wherein Ar1 is an aromatic or heteroaromatic group; L1 is a linker atom or group; Ar2 is an optionally substituted aromatic or heteroaromatic group; R5 is a carboxylic acid (—CO2H) or a derivative thereof; The compounds are able to inhibit the binding of alpha 4 integrins to their ligands and are of use in the prophylaxis and treatment of immune in inflammatory disorders.Type: GrantFiled: September 29, 1999Date of Patent: August 14, 2001Assignee: Celltech Therapeutics LimitedInventors: Julien Alistair Brown, Graham John Warrellow, John Robert Porter, Sarah Catherine Archibald, John Clifford Head