Patents by Inventor Peter Hanggi

Peter Hanggi 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).

  • Patent number: 9475743
    Abstract: Described is a novel process for the preparation of substituted tris(2-hydroxyphenyl)methane derivatives and the use of tris(2-hydroxyphenyl)methane derivatives for tertiary mineral oil production.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: October 25, 2016
    Assignee: Wintershall Holding GmbH
    Inventors: Fabien Jean Brand, Peter Hänggi, Michèle Gerster, Markus Hansch
  • Publication number: 20160016871
    Abstract: Described is a novel process for the preparation of substituted tris(2-hydroxyphenyl)methane derivatives and the use of tris(2-hydroxyphenyl)methane derivatives for tertiary mineral oil production.
    Type: Application
    Filed: February 28, 2014
    Publication date: January 21, 2016
    Applicant: WINTERSHALL HOLDING GMBH
    Inventors: Fabien Jean Brand, Peter Hänggi, Michèle Gerster, Markus Hansch
  • Publication number: 20090280326
    Abstract: The present invention relates to a process for the thermal treatment of metal coated particles, to the particles obtainable by the process and to their use for the manufacture of printable electronics, or for EMI shielding.
    Type: Application
    Filed: April 2, 2007
    Publication date: November 12, 2009
    Inventors: Thomas Giesenberg, Peter Hänggi, Patrice Bujard
  • Patent number: 7615522
    Abstract: The present invention relates to a block copolymer prepared by ATRP, wherein the polymer chain terminal group is structurally modified with the functionally effective group of a lubricant or polymer additive selected from the group consisting of antioxidants, metal deactivators, antiwear and extreme pressure additives and corrosion inhibitors. The invention also relates to a composition comprising the structurally modified block copolymer and a composition of matter subject to oxidative, thermal or light induced degradation, such as lubricants or polymers.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: November 10, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hugo Camenzind, Paul Dubs, Peter Hänggi, Roger Martin, Andreas Mühlebach, François Rime
  • Publication number: 20090221458
    Abstract: The invention relates to improved compositions based on lubricants and comprising succinic acid semi-amides and to the use of those lubricant compositions in improving the use properties of lubricants, such as hydraulic or metal-working fluids, greases, gear oils or engine oils.
    Type: Application
    Filed: May 12, 2009
    Publication date: September 3, 2009
    Inventors: Hugo CAMENZIND, Peter HANGGI
  • Publication number: 20050272617
    Abstract: The present invention relates to a block copolymer prepared by ATRP, wherein the polymer chain terminal group is structurally modified with the functionally effective group of a lubricant or polymer additive selected from the group consisting of antioxidants, metal deactivators, antiwear and extreme pressure additives and corrosion inhibitors. The invention also relates to a composition comprising the structurally modified block copolymer and a composition of matter subject to oxidative, thermal or light induced degradation, such as lubricants or polymers.
    Type: Application
    Filed: April 29, 2003
    Publication date: December 8, 2005
    Inventors: Hugo Camenzind, Paul Dubs, Peter Hanggi, Roger Martin, Andreas Muhlebach, Francois Rime
  • Publication number: 20050267003
    Abstract: The invention relates to improved compositions based on lubricants and comprising succinic acid semi-amides and to the use of those lubricant compositions in improving the use properties of lubricants, such as hydraulic or metal-working fluids, greases, gear oils or engine oils.
    Type: Application
    Filed: September 11, 2003
    Publication date: December 1, 2005
    Inventors: Hugo Camenzind, Peter Hanggi
  • Patent number: 6362138
    Abstract: This invention relates to compounds which are suitable as ash-free antiwear additives and antioxidants, to lubricant compositions comprising said compounds as well as to their use. are particularly preferred. In the preferred compounds I′, R2 is isooctyloxycarbonylmethyl, R3 is isooctyloxycarbonylmethylthiomethyl and R4 is hydrogen; or R2 is tert-nonyl and R3 is tert-nonylthiomethyl and R4 is hydrogen; or R2 is isooctyloxycarbonylmethyl, R3 is hydrogen and R4 is isooctyloxycarbonylmethylthiomethyl; or R2 is tert-nonyl, R3 is hydrogen and R4 I is tert-nonylthiomethyl.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: March 26, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hugo Camenzind, Samuel Evans, Alfred Dratva, Peter Hänggi
  • Patent number: 6255259
    Abstract: Suitable lubricant additives are the compounds of formulae wherein the substituents and groups have the following preferred meanings: R1=H; R2=methyl or tert-butyl; R3=tert-butyl; s=0, 1 or 2; R4=—A—[(C6H2)(methyl or tert-butyl)(OH)(tert-butyl)]; A=—CH2CH2O—(C═O)—CH2CH2— or —CH2CH(CH3)—O—(C═O)—CH2CH2—.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: July 3, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hugo Camenzind, Alfred Dratva, Peter Hänggi
  • Patent number: 6150307
    Abstract: This invention relates to compounds which are suitable as ash-free antiwear additives and antioxidants, to lubricant compositions comprising said compounds as well as to their use. Compounds of formulae ##STR1## are particularly preferred. In the preferred compounds I',R.sub.2 is isooctyloxycarbonylmethyl, R.sub.3 is isooctyloxycarbonylmethylthiomethyl and R.sub.4 is hydrogen; orR.sub.2 is tert-nonyl and R.sub.3 is tert-nonylthiomethyl and R.sub.4 is hydrogen; orR.sub.2 is isooctyloxycarbonylmethyl, R.sub.3 is hydrogen and R.sub.4 is isooctyloxycarbonylmethylthiomethyl; orR.sub.2 is tert-nonyl, R.sub.3 is hydrogen and R.sub.4 I is tert-nonylthiomethyl.In the preferred compounds II',R.sub.2 and R.sub.2 ' are isooctyloxycarbonylmethyl, R.sub.3 and R.sub.3 ' are isooctyloxycarbonylmethylthiomethyl and R.sub.4 and R.sub.4 ' are hydrogen; orR.sub.2 and R.sub.2 ' are tert-nonyl, R.sub.3 and R.sub.3 ' are tert-nonylthiomethyl and R.sub.4 and R.sub.4 ' are hydrogen; orR.sub.2 and R.sub.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: November 21, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hugo Camenzind, Samuel Evans, Alfred Dratva, Peter Hanggi
  • Patent number: 6100406
    Abstract: Suitable lubricant additives are the compounds of formulae wherein the substituents and groups have the following preferred meanings:R.sub.1 =H; R.sub.2 =methyl or tert-butyl; R.sub.3 =tert-butyl;s=0, 1 or 2;R.sub.4 =--A--[(C.sub.6 H.sub.2)(methyl or tert-butyl)(OH)(tert-butyl)];A=--CH.sub.2 CH.sub.2 O--(C.dbd.O)--CH.sub.2 CH.sub.2 -- or --CH.sub.2 CH(CH.sub.3)--O--(C.dbd.O)--CH.sub.2 CH.sub.2.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: August 8, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hugo Camenzind, Alfred Dratva, Peter Hanggi