Patents by Inventor Abraham Patchornik

Abraham Patchornik 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).

  • 7-[(Pyridylthiomethyl)phenyl]acetamidocephalosporin derivatives
    Patent number: 4171434
    Abstract: Novel pyridylthiomethyl substituted cephalosporin compounds having the formula ##STR1## wherein R is 2-pyridyl, 3-pyridyl or 4-pyridyl.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: October 16, 1979
    Assignee: Yeda Research and Development Co. Ltd.
    Inventors: Fortuna Haviv, Abraham Patchornik
  • Process for removing constituents from a mixture
    Patent number: 4154674
    Abstract: The present process causes selective removal of a predetermined anionic or cationic constituent from a mixture containing a plurality of constituents by contacting the mixture with an extraction agent so as to remove the desired constituent from the mixture, and if desired eluting the constituent from the extraction agent, thus recovering the extracting agent for further use. The extraction agent has the general formulaRY [(XO).sub.n --X] YR'wherein X is a group (CH.sub.2 --CH.sub.2) or (CH.sub.2 --CHR.sup.1) where R.sup.1 is alkyl, aryl or a non-interfering functional substituent, n is an integer between 2 and 100 which defines the molecular weight of the glycol or glycol derivative, and wherein R and R', which may be identical or different, each designates:(a) R and R' are hydrocarbon groups selected from alkyl, aryl and aralkyl;(b) R and R' are as defined in (a), one at least of R and R' being a group ##STR1## WHEREIN R.sub.a is a non-interfering substitutent; R.sub.b is --H, --OH, --COR.sub.d, CR.sub.
    Type: Grant
    Filed: July 21, 1977
    Date of Patent: May 15, 1979
    Assignee: Yeda Research & Development Co., Ltd.
    Inventors: Abraham Warshawsky, Abraham Patchornik, Rami Kalir
  • 7[[(1-Pyrrollyl)7 acetyl]amino]cephalosporin derivatives
    Patent number: 4150224
    Abstract: Novel cephalosporin compounds useful as antibiotics having the following formula and pharmaceutically useful salts thereof: ##STR1##
    Type: Grant
    Filed: October 4, 1977
    Date of Patent: April 17, 1979
    Assignee: Yeda Research and Development Co., Ltd.
    Inventors: Abraham Nudelman, Abraham Patchornik
  • Pyrrole cephalosporin derivatives
    Patent number: 4148998
    Abstract: New pyrrole derivatives of cephalosporin compounds have been prepared which are useful as antibiotics.
    Type: Grant
    Filed: October 4, 1977
    Date of Patent: April 10, 1979
    Assignee: Yeda Research and Development Co., Ltd.
    Inventors: Abraham Nudelman, Abraham Patchornik
  • 7-[Sulfomethyl)phenyl]acetamidocephalosporin derivatives
    Patent number: 4148997
    Abstract: Novel cephalosporin compounds of the following formula are useful as antibiotic agents: ##STR1##
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: April 10, 1979
    Assignee: Yeda Research and Development Co., Ltd.
    Inventors: Fortuna Haviv, Abraham Patchornik
  • Indole cephalosporin derivatives
    Patent number: 4139703
    Abstract: New indole derivatives of cephalosporin compounds have been prepared which are useful as antibiotics.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: February 13, 1979
    Assignee: Yeda Research and Development Co. Ltd.
    Inventors: Abraham Nudelman, Abraham Patchornik
  • 7-[(Substituted-isothioureamethyl)phenyl]-acetamidocephalosporin derivatives
    Patent number: 4125715
    Abstract: Novel cephalosporin derivatives of the following formula are useful as antibacterial agents: ##STR1##
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: November 14, 1978
    Assignee: Yeda Research and Development Co. Ltd.
    Inventors: Fortuna Haviv, Abraham Nudelman, Abraham Patchornik
  • 7-[(Pyridylthiomethyl)phenyl]acetamido-cephalosporin derivatives
    Patent number: 4124762
    Abstract: Novel pyridylthiomethyl substituted cephalosporin compounds having the formula ##STR1## wherein R is 2-pyridyl, 3-pyridyl or 4-pyridyl.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: November 7, 1978
    Assignee: Yeda Research and Development Co., Ltd.
    Inventors: Fortuna Haviv, Abraham Patchornik
  • 7-[(SUBSTITUTED-THIOMETHYL)PHENYL] ACETAMIDOCEPHALOSPORIN DERIVATIVES
    Patent number: 4124761
    Abstract: Novel compounds of the formula ##STR1## are useful as antibiotics.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: November 7, 1978
    Assignee: Yeda Research and Development Co. Ltd.
    Inventors: Abraham Nudelman, Abraham Patchornik
  • Cephalosporin derivatives
    Patent number: 4122260
    Abstract: New cephalosporin derivatives containing a formyl substituted pyrrole group and the processes for preparing same are described.
    Type: Grant
    Filed: October 4, 1977
    Date of Patent: October 24, 1978
    Assignee: Yeda Research and Development Co., Ltd.
    Inventors: Abraham Nudelman, Abraham Patchornik
  • Azidomethylaryl-substituted cephalosporin derivatives
    Patent number: 4118562
    Abstract: Novel cephalosporin antibiotic derivatives.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: October 3, 1978
    Assignee: Yeda Research and Development Co. Ltd.
    Inventors: Fortuna Haviv, Abraham Patchornik
  • Pyridiniummethylaryl-substituted cephalosporin derivatives
    Patent number: 4093804
    Abstract: Novel cephalosporin antibiotic derivatives.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: June 6, 1978
    Assignee: Yeda Research and Development Co., Ltd.
    Inventors: Fortuna Haviv, Abraham Patchornik
  • Thiocarbamatemethyl-substituted cephalosporin derivatives
    Patent number: 4093802
    Abstract: Novel cephalosporin antibiotic derivatives.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: June 6, 1978
    Assignee: Yeda Research and Development Co., Ltd.
    Inventors: Fortuna Haviv, Abraham Patchornik, Janina Altman
  • Cephalosporin antibiotics
    Patent number: 4045438
    Abstract: Novel cephalosporin antibiotic derivatives.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: August 30, 1977
    Assignee: Yeda Research and Development Co. Ltd.
    Inventors: Fortuna Haviv, Abraham Patchornik
  • Cephalosporin antibiotics
    Patent number: 4031083
    Abstract: Novel cephalosporin antibiotic derivatives.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: June 21, 1977
    Assignee: Yeda Research and Development Co., Ltd.
    Inventors: Fortuna Haviv, Abraham Patchornik, Janina Altman
  • Cephalosporin antibiotics
    Patent number: 4026887
    Abstract: Novel cephalosporin antibiotic derivatives.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: May 31, 1977
    Assignee: Yeda Research & Development Co. Ltd.
    Inventors: Fortuna Haviv, Abraham Patchornik
  • Antibiotics
    Patent number: 3994875
    Abstract: Novel cephalosporin and penicillin antibiotic derivatives.
    Type: Grant
    Filed: December 16, 1975
    Date of Patent: November 30, 1976
    Assignee: Yeda Research & Development Co. Ltd.
    Inventors: Abraham Patchornik, Fortuna Haviv
  • Modification of polystyrene by Friedel-Crafts reaction with substituted halo ethyl benzenes and haloethylphenols to make supports for solid phase peptide synthesis
    Patent number: 3974110
    Abstract: A process for producing reagents useful in organic synthesis, of the general formula ##SPC1##WhereinZ designates the ##EQU1## part of a polymeric backbone of a polymer like polystyrene, a copolymer comprising polystyrene and a comonomer like divinylbenzene, butadiene, and other copolymers comprising styrene, or wherein Z designates the aliphatic moiety of a long-chain aralkyl compound having a terminal phenyl moiety;n is an integer from 1 to 8, inclusive;R designates oxygen or sulfur;X designates nitro, carbonyl, carboxyl, cyano-carbalkoxy or a carboxamido group which may be substituted on the nitrogen atom, or a halogen atom, or alkyl, unsaturated alkyl, aralkyl;RH and X together designate hydroxytriazole; which comprises reacting a compound of the general formula ##SPC2##Wherein Y designates --Cl, --Br, or --OH and X and R are as defined above, with a polystyrene polymer or with a copolymer as defined above, or with a long-chain araliphatic compound as defined above, in a Friedel-Crafts reaction.
    Type: Grant
    Filed: October 3, 1974
    Date of Patent: August 10, 1976
    Assignee: Yeda Research & Development Co. Ltd.
    Inventors: Abraham Patchornik, Rami Kalir, Matityahu Fridkin, Abraham Warshavsky
  • Isothiourea substituted cephalosporin derivatives
    Patent number: 3948904
    Abstract: Novel cephalosporin and penicillin antibiotic derivatives.
    Type: Grant
    Filed: June 24, 1974
    Date of Patent: April 6, 1976
    Assignee: Yeda Research & Development Co. Ltd.
    Inventors: Abraham Patchornik, Fortuna Haviv