Patents Assigned to Biotech Tools S.A.
  • Publication number: 20190134199
    Abstract: A pharmaceutical composition of hydrolyzed allergens and its use for treating, curing or preventing allergic reactions. The hydrolyzed allergens are prepared by: a) extracting a source of allergens comprising allergenic proteins to form an extract, b) purifying the extract to remove non-protein components to form a purified extract, c) denaturing the purified extract with a first denaturing agent to form a purified denatured extract, d) refining the purified denatured extract to remove impurities to form a refined denatured extract, e) denaturing the refined denatured extract with a second denaturing agent to form denatured allergen mixture, and f) hydrolyzing the denatured allergen mixture to form the hydrolyzed allergens.
    Type: Application
    Filed: December 21, 2018
    Publication date: May 9, 2019
    Applicant: BIOTECH TOOLS S.A.
    Inventors: Gael Placier, Laetitia Frisch, Thierry Legon, Marie-Ange Benoit
  • Patent number: 10195276
    Abstract: A method for the production of hydrolyzed allergens from allergens comprising the steps of: a) extracting a source of allergens comprising allergenic proteins to form an extract, b) purifying the extract to remove non-protein components to form a purified extract, c) denaturing the purified extract with a first denaturing agent to form a purified denatured extract, d) refining the purified denatured extract to remove impurities to form a refined denatured extract, e) denaturing the refined denatured extract with a second denaturing agent to form denatured allergen mixture, and f) hydrolyzing the denatured allergen mixture to form the hydrolyzed allergens.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 5, 2019
    Assignee: BIOTECH TOOLS S.A.
    Inventors: Gael Placier, Laetitia Frisch, Thierry Legon, Marie-Ange Benoit
  • Publication number: 20180256708
    Abstract: A method for the production of a purified extract of natural allergens comprising the steps of a) extracting a natural source of allergens comprising allergenic proteins to form an extract, b) purifying of said extract to remove non-protein components to form a purified extract c) denaturating said purified extract to form a purified denaturated extract, said purified denaturated extract comprising proteins, wherein the most abundant (w/w) proteins, forming together at least 60% (w/w) of all proteins, are at least two proteins, and all proteins represent at least 60% (w/w) of the dry weight of the purified denaturated extract and a method for the production of a purified extract of natural allergens comprising the steps of a) hydrolysing a denaturated allergen to form an allergen hydrolysate, b) purifying said allergen hydrolysate to remove peptides with a molecular weight above 10,000 Da and below 1,000 Da in order to obtain a purified hydrolysate where 70%, more preferably 80% of the peptides are betwe
    Type: Application
    Filed: May 9, 2018
    Publication date: September 13, 2018
    Applicant: Biotech Tools S.A.
    Inventors: Thierry LEGON, Sabine PIROTTON, Gael PLACIER, Gilles KERGOAT
  • Publication number: 20140255449
    Abstract: A pharmaceutical preparation for subcutaneous injection comprising between 0.5 ng and 200 ?g of HSP70 between 0.5 and 100 ?g of fragments of an antigenic structure.
    Type: Application
    Filed: July 19, 2012
    Publication date: September 11, 2014
    Applicant: BioTech Tools S.A.
    Inventors: Thierry Legon, Sabine Pirotton, Jean Duchateau
  • Publication number: 20140220044
    Abstract: A method for the production of hydrolyzed allergens from allergens comprising the steps of: a) extracting a source of allergens comprising allergenic proteins to form an extract, b) purifying the extract to remove non-protein components to form a purified extract, c) denaturing the purified extract with a first denaturing agent to form a purified denatured extract, d) refining the purified denatured extract to remove impurities to form a refined denatured extract, e) denaturing the refined denatured extract with a second denaturing agent to form denatured allergen mixture, and f) hydrolyzing the denatured allergen mixture to form the hydrolyzed allergens.
    Type: Application
    Filed: June 15, 2012
    Publication date: August 7, 2014
    Applicant: Biotech Tools S.A.
    Inventors: Gael Placier, Laetitia Frisch, Thierry Legon, Marie-Ange Benoit
  • Patent number: 8735122
    Abstract: Recombinant purified DnaK—having a ATPase activity without the addition of an other chaperone protein—essentially free of T-cell stimulating impurities.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: May 27, 2014
    Assignee: Biotech Tools S.A.
    Inventors: Frederic Henot, Thierry Legon, Sabine Pirotton, Gael Placier
  • Patent number: 8436136
    Abstract: A complex comprising at least one heat shock protein (HSP) and at least one peptide selected from the group consisting of R1-QXRAA-R2 with R1=peptide with 1-10 amino acids R2=peptide with 1-10 amino acids X=K or R GFFYTPK (insulin 23-29) SEQ ID No 1 GFFYTPKT (insulin 23-30) SEQ ID No 2 IYPPNANK (DER p1) SEQ ID No 3 GIEYIQHNGVVQESYYR (DER P1) SEQ ID No 4 ASTTTNYT (gp120 of HIV) SEQ ID No 5 DYEYLINVIHAFQYV (PLP 56-70) SEQ ID No 6 EKLIETYFSKNYQDYEYLINVI (PLP 43-64) SEQ ID No 7 KTTICGKGLSATVT (PLP 104-117) SEQ ID No 8 HSLGKWLGHPDKF (PLP 139-151 C140 ô S140) SEQ ID No 9 PRHPIRVELPCRISP (MOG 8-22) SEQ ID No 10 DEGGYTCFFRDHSYQ (MOG 92-106) SEQ ID No 11 Ac-ASQKRPSQRHG (MBP ac1-11) SEQ ID No 12 TGILDSIGRFFSG (MBP 35-47) SEQ ID No 13 VHFFKNIVTPRTP (MBP 89-101) SEQ ID No 14 HCLGKWLGHPDKF (PLP 139-151) SEQ ID No 15 MEVGWYRSPFSRVVHLYRNGK (MOG) SEQ ID No 16 QKRAAYDQYGHAAFE (E. Coli DnaJ) SEQ ID No. 17 QKRAAVDTYCRHNYG (HLA DRB1*0401) SEQ ID No. 18 QRRAAYDQYGHAAFE SEQ ID No. 19 and QRRAAVDTYCRHNYG SEQ ID No. 20.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: May 7, 2013
    Assignee: Biotech Tools S.A.
    Inventors: Frederic Henot, Thierry Legon, Isabelle Galy-Fauroux, Jean Duchateau
  • Publication number: 20040265322
    Abstract: The present invention is related to a process for obtaining a composition comprising peptides bound to one or more heat shock protein(s) and for possibly recovering from said composition the bound peptides, wherein the peptides resulting from a previously in-vitro hydrolysis of at least one immunogenic and antigenic macromolecular structure, are mixed in-vitro with one or more heat shock protein(s).
    Type: Application
    Filed: February 3, 2004
    Publication date: December 30, 2004
    Applicant: BIOTECH TOOLS S.A.
    Inventors: Frederic Henot, Thierry Legon, Jean Duchateau
  • Patent number: 6709672
    Abstract: The present invention is related to a process for obtaining a composition comprising peptides bound to one or more heat shock protein(s) and for possibly recovering from said composition the bound peptides, wherein the peptides resulting from a previously in-vitro hydrolysis of at least one immunogenic and antigenic macromolecular structure, are mixed in-vitro with one or more heat shock protein(s). The present invention is also related to the compositions obtained by said process.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: March 23, 2004
    Assignee: Biotech Tools S.A.
    Inventors: Frédéric Hénot, Thierry Legon, Jean Duchateau, Geneviève Servais
  • Patent number: 6613351
    Abstract: The invention includes a vector including a complex between at least one compound having an amidine polar head of formula where m is 14 and at least one of nucleic acids molecules, polypeptides, and glycosylated polypeptides.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: September 2, 2003
    Assignee: Biotech Tools S.A.
    Inventors: Jean-Marie Ruysschaert, Robert Fuks, Michel Vandenbranden