Patents by Inventor Bernt Krebs

Bernt Krebs 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).

  • Publication number: 20060041159
    Abstract: Transition metal complexes with quino[7,8-h]quinolines and cyclopentadieno[1,2-h:4,3-h?]diquinolines as proton sponge ligands and a process for their preparation. These complexes are suitable as catalysts, e.g. the palladium complexes for a Heck reaction, as well as for amination and C—H activation reactions. The platinum and palladium complexes are potentially good cytostatic agents.
    Type: Application
    Filed: January 19, 2002
    Publication date: February 23, 2006
    Applicant: Studiengesellschaft Kohle MbH
    Inventors: Hans-Ulrich Wustefeld, William Kaska, Galen Stucky, Ferdi Schuth, Bernt Krebs
  • Patent number: 6610864
    Abstract: The selective epoxidation of cis double bonds of macrocyclic aliphatic hydrocarbons having 8 to 20 ring carbon atoms occurs by a catalytic process. The macrocyclic aliphatic hydrocarbons may optionally contain one or more side chains and in which at least one further trans double bond is simultaneously present. The used catalyst system consists of a cationic phase-transfer catalyst and an anionic polyoxometallate which is a polytungstate or a polymolybdate. Additionally, it comprises one or more elements selected from germanium, tin, lead, arsenic, antimony, bismuth, selenium, tellurium and polonium, and optionally one or more transition metals from group 4 to 12 of the Periodic Table.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: August 26, 2003
    Assignee: Degussa AG
    Inventors: Bernt Krebs, Elisabeth Droste, Markus Piepenbrink, Guido Vollmer, Georg Oenbrink, Thomas Schiffer
  • Publication number: 20020091275
    Abstract: The selective epoxidation of cis double bonds of macrocyclic aliphatic hydrocarbons having 8 to 20 ring carbon atoms occurs by a catalytic process. The macrocyclic aliphatic hydrocarbons may optionally contain one or more side chains and in which at least one further trans double bond is simultaneously present. The used catalyst system consists of a cationic phase-transfer catalyst and an anionic polyoxometallate which is a polytungstate or a polymolybdate. Additionally, it comprises one or more elements selected from germanium, tin, lead, arsenic, antimony, bismuth, selenium, tellurium and polonium, and optionally one or more transition metals from group 4 to 12 of the Periodic Table.
    Type: Application
    Filed: November 5, 2001
    Publication date: July 11, 2002
    Applicant: DEGUSSA AG
    Inventors: Bernt Krebs, Elisabeth Droste, Markus Piepenbrink, Guido Vollmer, Georg Oenbrink, Thomas Schiffer
  • Patent number: 6153576
    Abstract: Described are complexes of the transition metals manganese, iron, cobalt, ruthenium, molybdenum, titanium, vanadium and/or copper containing one or more ligands of general formula (I) ou (II)in which R is a direct bond or an optionally amin-group-substituted alkylene group with 1 to 4 C-atoms, A is a condensed or non-condensed ring system containing at least one nitrogen atom, B is hydrogen, an OH-group or the same as A, and X is a phenyl ring optionally substituted with and/or C.sub.1-4 alkyl or an optionally hydroxy-substituted C.sub.1-4 alkylene group. The complexes are suitable for use as activators or peroxy compounds in oxidative washing, cleaning and disinfectant solutions, washing and cleaning agents preferably containing 0.0025 to 0.25% by wt. of such activator complexes.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: November 28, 2000
    Assignee: Henkel Kommanditgesellschaft Auf Aktien
    Inventors: Helmut Blum, Bernd Mayer, Ulrich Pegelow, Horst-Dieter Speckmann, Bernt Krebs, Mark Duda, Cetin Nazikkol, Joerg Reim
  • Patent number: 6022986
    Abstract: The invention is directed to manganese-containing polyoxometallates of the formula (1)(Q).sub.q (Mn.sub.p A.sub.a X.sub.x Y.sub.y M.sub.m O.sub.d Z.sub.z (H.sub.2 O).sub.b)cH.sub.2 O (1)where Q is one or more cations selected from the group consisting of H, Li, K, Na, Rb, Cs, Ca, Mg, Sr, Ba, Al, PR.sup.1 R.sup.2 R.sup.3 R.sup.4 and NR.sup.1 R.sup.2 R.sup.3 R.sup.4 where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 =H or C.sub.1 -C.sub.20 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl or aryl;Mn is manganese;A is a heterometal and is one or more transition metals from transition groups II to VIII apart from Zn, in particular Ru, V, Ti, Zr, Cr, Fe, Co, Cu, Sn, Ni, Re or Os;X is one or more elements selected from the group consisting of Ga, B, P, Si, Ge, As, F, Cl, Br and I;Y is Sb, S, Te, Se and Bi;M is one or more transition metals selected from the group consisting of Mo, W, Nb, Ta and V;Z is one or more anions selected from the group consisting of OH.sup.-, F.sup.-, Cl.sup.-, Br.sup.-, I.sup.-, N.sub.3.sup.-, NO.sub.3.sup.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: February 8, 2000
    Assignee: Hoechst Research & Technology Deutschland GmbH & Co. KG
    Inventors: Bernd Scharbert, Rolf Peter Schulz, Bernt Krebs, Rainer Bohner, Christian Thulig
  • Patent number: 5928382
    Abstract: Bleach composition comprising one or more bleaching agents and one or more polyoxometallates of the formula(Q).sub.q (A.sub.a X.sub.x M.sub.m O.sub.y Z.sub.z (H.sub.2 O).sub.b.cH.sub.2 Oas bleaching catalyst, the symbols Q, A, X, M, Z, q, a, x, m, y, z, b and c being as defined in the description.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: July 27, 1999
    Assignee: Clariant GmbH
    Inventors: Gerd Reinhardt, Vera Friderichs, Bernd Scharbert, Rolf Peter Schulz, Bernt Krebs, Rainer Bohner, Christian Thulig