Patents by Inventor Rudolf Hopp

Rudolf Hopp 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).

  • Process for the preparation of vanillin and microorganisms suitable therefor
    Patent number: 6133003
    Abstract: Using newly discovered microorganisms of the family Pseudonocardiaceae, vanillin may be produced in high yields from ferulic acid. The microorganisms are two strains of Amycolatopsis.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: October 17, 2000
    Assignee: Haarmann & Reimer GmbH
    Inventors: Jurgen Rabenhorst, Rudolf Hopp
  • Process for the preparation of substituted methoxyphenols and microorganisms suitable for this purpose
    Patent number: 5976863
    Abstract: Ferulic acid, vanillic acid, coniferyl alcohol and coniferyl aldehyde can be prepared from eugenol with the aid of a new Pseudomonas species.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: November 2, 1999
    Assignee: Haarmann & Reimer GmbH
    Inventors: Rudolf Hopp, Jurgen Rabenhorst
  • Method for causing a physiological cooling effect to the skin or mucosa involving the application of carbonic acid esters
    Patent number: 5703123
    Abstract: Asymmetric carbonates, thiocarbonates and urethanes having a physiological cooling effect on the skin and on mucosae are described.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: December 30, 1997
    Assignee: Haarmann & Reimer GmbH
    Inventors: Ralf Pelzer, Horst Surburg, Rudolf Hopp
  • Use of benzazoles UV absorbers, new benzazoles and a process for their preparation
    Patent number: 5585091
    Abstract: Compounds which, per molecule, contain at least 2 benzazolyl groups are outstandingly suitable as UV absorbers for sunscreen compositions.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: December 17, 1996
    Assignee: Haarmann & Reimer GmbH
    Inventors: Ralf Pelzer, Roland Langner, Horst Surburg, Horst Sommer, Alfred Krempel, Rudolf Hopp
  • Process for the preparation of substituted methoxyphenols and microorganisms suitable for this purpose
    Patent number: 5510252
    Abstract: Ferulic acid, vanillic acid, coniferyl alcohol and coniferyl aldehyde can be prepared from eugenol with the aid of a new Pseudomonas species.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: April 23, 1996
    Assignee: Haarmann & Reimer GmbH
    Inventors: Rudolf Hopp, Jurgen Rabenhorst
  • Process for the preparation of substituted methoxyphenols and microorganisms suitable for this purpose
    Patent number: 5371013
    Abstract: Ferulic acid, vanillic acid, coniferyl alcohol and coniferyl aldehyde can be prepared from eugenol with the aid of a new Pseudomonas species.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: December 6, 1994
    Assignee: Haarmann & Reimer GmbH
    Inventors: Rudolf Hopp, Jurgen Rabenhorst
  • Derivatives of cyclic lactones, a process for their preparation and a process for the preparation of 15-pentadecanolide and its homologues
    Patent number: 5319104
    Abstract: The invention relates to new derivatives of macrocyclic lactones, a process for their preparation, a pyrolysis process using these new derivatives and the use of the pyrolysis products for the preparation of saturated macrocyclic lactones.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: June 7, 1994
    Assignee: Haarmann & Reimer GmbH
    Inventors: Rudolf Hopp, Horst Finkelmeier, Oskar Koch, Alfred Korber
  • Compositions which have a physiological cooling effect, and active compounds suitable for these compositions
    Patent number: 5266592
    Abstract: Ketals, preferably glycerol ketals such as, for example, 1-menthone glycerol ketal or 3,3,5-trimethylcyclohexanone glycerol ketal, have a physiological cooling effect and are therefore suitable as active compounds in compositions which are intended to cause a sensation of freshness on human skin or mucous membrane.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: November 30, 1993
    Assignee: Haarmann & Reimer GmbH
    Inventors: Helmut Grub, Ralf Pelzer, Rudolf Hopp, Roland Emberger, Heinz-Jurgen Bertram
  • Ethers of 1-hydroxy-hex-5-en-2-one, processes for their preparation and their use as odoriferous substances
    Patent number: 5248831
    Abstract: Ethers of 1-hydroxy-hex-5-en-2-one are useful odoriferous substances which have a very complex fragrance pattern and allow an interesting variation in the scent of perfume oils.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: September 28, 1993
    Assignee: Haarmann & Reimer GmbH
    Inventors: Rudolf Hopp, Thomas Thielmann, Wilhelm Gottsch
  • Cyclopentyl-cyanomethyl-cyclopentenes, process for their preparation and their use as odoriferous substances
    Patent number: 5212153
    Abstract: New nitriles which are odoriferous substances having an extremely fresh note are accessible by Knoevenagel condensation of 2-cyclopentyl-cyclopentanone and cyanoacetic acid and decarboxylation of the reaction product.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: May 18, 1993
    Assignee: Haarmann & Reimer GmbH
    Inventors: Rudolf Hopp, Thomas Thielmann, Wilhelm Gottsch
  • Dimethylfuryl-dihydro-1,3,5-dithiazines
    Patent number: 5166342
    Abstract: Dimethylfuryl-dihydro-1,3,5-dithiazines are useful flavorings having low taste threshold values. They impart a coffee or mocha taste, in particular to drinks, confectionery and bakery products.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: November 24, 1992
    Assignee: Haarmann & Reimer
    Inventors: Jurgen Bruning, Roland Emberger, Matthias Guntert, Rudolf Hopp, Manfred Kopsel, Peter Werkhoff
  • Thio-alkanones, process for their preparation and their use
    Patent number: 5145703
    Abstract: The invention relates to new thio-alkanones of the formula ##STR1## in which X represents an oxygen or sulphur atom,R.sub.1 represents hydrogen or a C.sub.1 -C.sub.2 -alkyl group and the broken lines represent a single bond or no bond,to a process for their preparation and their use as flavorings.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: September 8, 1992
    Assignee: Haarmann & Reimer
    Inventors: Roland Emberger, Matthias Gunter, Rudolf Hopp, Manfred Kopsel, Walter Kuhn, Peter Werkhoff
  • Alkadienenitriles, process for their preparation and their use
    Patent number: 5105005
    Abstract: The invention relates to new alkadienenitriles of the formula ##STR1## in which n is an integer from 5 to 9, a process for their preparation and their outstanding suitability as odororiferous substances.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: April 14, 1992
    Assignee: Haarmann & Reimer GmbH
    Inventors: Rudolf Hopp, Thomas Thielmann, Wilhelm Gottsch
  • Process for the preparation of vanillin
    Patent number: 5017388
    Abstract: A process for the preparation of natural vanillin is disclosed wherein eugenol and/or isoeugenol is oxidized microbially to vanillin using microorganisms of the genera Serratia, Klebsiella or Enterobacter.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: May 21, 1991
    Assignee: Haarmann & Reimer GmbH
    Inventors: Jurgen Rabenhorst, Rudolf Hopp
  • Hemimercaptals, processes for their preparation, and edible compositions containing same
    Patent number: 4988526
    Abstract: New hemimercaptals of the formula ##STR1## in which X represents an oxygen or sulphur atom, a process for their preparation and their use as flavorings have been found.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: January 29, 1991
    Assignee: Haarmann & Reimer GmbH
    Inventors: Jurgen Bruning, Roland Emberger, Matthias Guntert, Rudolf Hopp, Manfred Kopsel, Theodor Sand, Peter Werkhoff
  • Methylcyclododecatri-2,5,9-en-1-ols, a process for their preparation, and their use
    Patent number: 4853368
    Abstract: The invention relates to new methylcyclododecatri-2,5,9-en-1-oles of formula ##STR1## in which one of the dashed lines represents a double bond and the other a single bond, and the endocyclic double bonds may be cis- and trans-configured,a process for their preparation and their use as scents.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: August 1, 1989
    Assignee: Haarmann & Reimer GmbH
    Inventors: Jurgen Neinhaus, Rudolf Hopp, Wilhelm Gottsch, Egon Oelkers
  • Scents, and scent compositions containing them
    Patent number: 4814322
    Abstract: The invention relates to 1,2-dialkoxyalkenes of the formula ##STR1## in which R denotes an alkyl group having 1 to 3 carbon atoms, andn denotes an integer from 2 to 8 and to the use of 1,2-dialkoxyalkanes and -alkenes of the formula ##STR2## in which R denotes an alkyl group having 1 to 3 carbon atoms,n denotes an integer from 2 to 8, and ##STR3## denotes the CH.sub.3 --CH.sub.2 -- or CH.sub.2 50 CH-- group, as scents.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: March 21, 1989
    Assignee: Haarmann & Reimer GmbH
    Inventors: Fritz Exner, Detlef Hagena, Rudolf Hopp, Jurgen Nienhaus, Wilhelm Gottsch
  • Flavoring with oct-2-en-4-ol
    Patent number: 4710392
    Abstract: The invention relates to the use of oct-2-en-4-ol as a flavor, and to flavoring compositions containing this compound.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: December 1, 1987
    Assignee: Haarmann & Reimer GmbH
    Inventors: Jurgen Bruning, Roland Emberger, Rudolf Hopp, Theodor Sand
  • Process for the purification of crude .beta.-phenylethyl alcohol
    Patent number: 4664755
    Abstract: Process for the purification of crude .beta.-phenylethyl alcohol by azeotropic distillation in the presence of alkanolamines in which the alkylene chain contains 2 to 4 carbon atoms and is optionally substituted by 1 to 4 C.sub.1 -C.sub.3 -alkyl groups.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: May 12, 1987
    Assignee: Haarman & Reimer GmbH
    Inventors: Jurgen Nienhaus, Rudolf Hopp
  • Use of 5-methyl-hept-2-en-4-one as a fragrance and/or flavor
    Patent number: 4654168
    Abstract: A perfumed or edible composition comprising an appropriate carrier and an amount of 5-methyl-hept-2-en-4-one effective to impart its fragrance or flavor to the composition. It imparts a fragrance and flavor reminiscent of hazelnut.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: March 31, 1987
    Assignee: Haarmann & Reimer GmbH
    Inventors: Roland Emberger, Manfred Kopsel, Jurgen Bruning, Rudolf Hopp, Theodor Sand