Patents by Inventor Alberto Fiecchi

Alberto Fiecchi 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).

  • Synthesis of carminic acid and principal intermediates
    Patent number: 5424421
    Abstract: The invention relates to the synthesis of 6-deoxykermesates, 6-deoxykermesic acid, and carminic acid, based on a reaction of a 2-halogenonapthazarin with a bis-trimethylsilyl-diene.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: June 13, 1995
    Assignee: European Colour PLC
    Inventors: John H. P. Tyman, Alberto Fiecchi, deceased
  • Sulphonic acid salts of S-adenosilmethionine
    Patent number: 4057686
    Abstract: Stable salts of S-adenosil-L-methionine (SAM) with sulphonic acids chosen from the group consisting of methanesulphonic, ethanesulphonic, 1-n-dodecanesulphonic, 1-n-octadecanesulphonic, 2-chloroethanesulphonic, 2-bromoethanesulphonic, 2-hydroxyethanesulphonic, 3-hydroxypropanesulphonic, d-, 1, -d, 1-10-camphorsulphonic, d-, 1-, d, 1-3-bromocamphor-10-sulphonic, cysteic, benzenesulphonic, p-chlorobenzenesulphonic, 2-mesitylbenzenesulphonic, 4-biphenylsulphonic, 1-naphthalenesulphonic, 2-naphthalenesulphonic, 5-sulphosalicylic, p-acetylbenzenesulphonic, 1,2-ethanedisulphonic, o-benzenedisulphonic and chondroitinesulphuric acids, and double salts of said acids with sulphuric acid.
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: November 8, 1977
    Assignee: Bioresearch Limited
    Inventor: Alberto Fiecchi
  • Process of preparing double salts of S-adenosyl-L-methionine
    Patent number: 4028183
    Abstract: Double salts of S-adenosyl-L-methionine are prepared by the action of the enzyme ATP-methionine-adenosyltransferase on a mixture of adenosine triphosphate and methionine and subsequently precipitating said double salts with picrolonic acid, p-toluenesulphonic acid, sulphuric acid and organic solvents.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: June 7, 1977
    Assignee: Bioresearch Limited
    Inventor: Alberto Fiecchi
  • Double salts of S-adenosil-L-methionine
    Patent number: 3954726
    Abstract: New double salts extremely stable of S-Adenosil-L-methionine with sulphuric acid and p.toluensulphonic acid of the formula SAM.sup.+.HSO.sub.4 .sup.-.H.sub.2 SO.sub.4.2CH.sub.3 C.sub.6 H.sub.4 SO.sub.3 H and SAM.sup.+.HSO.sub.4 .sup.-.H.sub.2 SO.sub.4.CH.sub.3 C.sub.6 H.sub.4 SO.sub.3 H, process for the preparation thereof and therapeutic compositions containing them.
    Type: Grant
    Filed: June 24, 1974
    Date of Patent: May 4, 1976
    Assignee: Bioresearch Limited
    Inventor: Alberto Fiecchi