Patents by Inventor Louis Friedrich

Louis Friedrich 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: 20230311085
    Abstract: A process gas dividing system including a process gas dividing device as well as to use of a process gas dividing system in a reactor system for the production and/or treatment of particles in an oscillating process gas stream, in particular a pulsation reactor.
    Type: Application
    Filed: March 25, 2021
    Publication date: October 5, 2023
    Inventors: Frank Ohlendorf, Arne Teiwes, Louis Friedrich, Michael Jacob
  • Publication number: 20230294067
    Abstract: A reactor system for the production and/or treatment of particles in an oscillating process gas stream. The reactor system includes a reactor unit that has an upstream feed unit and a downstream discharge unit and a reactor that includes a multiple burner system that has a combustion chamber, an exhaust gas pipe that follows downstream from the combustion chamber, and a plurality of burners. A part of the burners of the multiple burner systems are suitable for production of the oscillating process gas stream. The burners of the multiple burner system are arranged in the combustion chamber of the reactor unit.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 21, 2023
    Inventors: Frank Ohlendorf, Arne Teiwes, Louis Friedrich, Michael Jacob
  • Publication number: 20230149884
    Abstract: A reactor system and a method for the production and/or treatment of particles in an oscillating process gas stream. The reactor system includes a reaction unit and a pulsation device. A pulsation that has a pulsation frequency and a pulsation pressure amplitude can be imposed on the process gas by means of the pulsation device. The pulsation device can adapt a pulation frequency and/or pulsation pressure amplitude of the pulsation to one of the inherent resonance frequencies of a resonator.
    Type: Application
    Filed: March 25, 2021
    Publication date: May 18, 2023
    Inventors: Frank Ohlendorf, Arne Teiwes, Louis Friedrich, Michael Jacob
  • Publication number: 20230151832
    Abstract: The invention relates to a pressure loss production device (1) having a process gas inflow (2) that has a process gas inflow inlet (5), a process gas inflow outlet (6), a process gas inflow longitudinal center axis (A-A), and a process gas inflow cross-sectional surface (7), having a process gas distributor (3) that has a process gas distributor longitudinal center axis (B-B), a process gas distributor cross-sectional surface (8), a process gas distributor inlet (10) arranged on a first end face (9) and a process gas distributor outlet (12) arranged on a second end face (11), and having a process gas outflow (4) that comprises a process gas outflow inlet (13), a process gas outflow outlet (14), a process gas outflow longitudinal center axis (C-C), and a process gas outflow cross-sectional surface (15), wherein the process gas inflow (2) is connected with the first end face (9) of the process gas distributor (3), and the second end face (11) of the process gas distributor (3) is connected with the process gas
    Type: Application
    Filed: March 25, 2021
    Publication date: May 18, 2023
    Inventors: Frank Ohlendorf, Arne Teiwes, Michael Jacob, Louis Friedrich
  • Publication number: 20070128560
    Abstract: The invention provides a color photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colorless heterocyclic compound having either one or two hetero atoms in the ring or ring system, being other than an imidazole compound, that undergoes less than 10% chemical or redox reaction directly with oxidized developer and which has a partition coefficient to enable the photographic speed of the element to be increased by at least 0.03 stop without increasing granularity, compared to the same element without the compound. The heterocyclic compounds increase speed without a concomitant increase in size of the light-sensitive silver halide grains.
    Type: Application
    Filed: October 1, 2004
    Publication date: June 7, 2007
    Inventors: Bernard Clark, Philip Allway, Tania Zuberi, Stephen Singer, Charles Heckler, Louis Friedrich
  • Publication number: 20060051710
    Abstract: The invention relates to a novel kind of anthranilic acid compound that releases a UG as a function of chemical bond cleavage according to Formula (I): Q-(AAS)-UG where UG is an useful group and is chemically bonded to (AAS); (AAS) is an anthranilic acid switching group; and Q is a group in which the bond to (AAS) is broken so that the -(AAS)-UG fragment subsequently decomposes to the free UG.
    Type: Application
    Filed: August 5, 2005
    Publication date: March 9, 2006
    Inventors: Stephen Singer, Philip Allway, Trevor Wear, Louis Friedrich, Siu (Lambert) Tsoi, Bernard Clark, Paul Stanley
  • Publication number: 20060008751
    Abstract: This invention relates to a multilayer silver halide photographic element, generally processed with phenylenediamine based developer solutions, comprising a support bearing a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, and a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one layer additionally contains a 2-substituted-5-amino-1-napthol DIR according to Formula (I): wherein: X is chosen from among hydrogen, halogen atoms, an alkyl group with 6 carbon atoms or less or a N-substituted carbamoyl group where the N substituent is either an alkyl group with 6 carbon atoms or less or an aryl
    Type: Application
    Filed: August 25, 2005
    Publication date: January 12, 2006
    Inventors: Stephen Singer, Christopher Grote, Robert Stewart, John Harder, David Ross, Janet Younathan, Louis Friedrich