Patents Represented by Attorney, Agent or Law Firm Robert A. Franks
  • Patent number: 5371284
    Abstract: Phenyl acetylenic acetals and thioacetals and their use in the treatment of allergy, asthma, inflammation, arthritis, hyperproliferative skin disease, psoriasis or contact dermatitis are disclosed. Also disclosed are intermediates useful for producing said phenyl acetylenic acetals and thioacetals.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: December 6, 1994
    Assignee: Schering Corporation
    Inventors: Richard J. Friary, Michael J. Green, Anil K. Saksena, Vera A. Seidl
  • Patent number: 5358708
    Abstract: Aqueous formulations of an interferon, a granulocyte-macrophage colony-stimulating factor or an interleukin are made to have extended storage lifetimes by incorporating methionine, histidine or mixtures thereof.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: October 25, 1994
    Assignee: Schering Corporation
    Inventor: Suman T. Patel
  • Patent number: 5243970
    Abstract: A powder dispenser assembly includes a container for holding a supply of powdered material, the container including a conduit extending therethrough; a metering plate rotatably mounted with respect to the container beneath the supply of powdered material for supplying the powdered material to the conduit, the metering plate including perforated areas therein, each adapted to hold one metered amount of the powdered material, and a first set of ratchet teeth; a blade assembly for scraping the powdered material into the perforated areas, the blade assembly being positioned between the supply of powdered material and the metering plate; a mouthpiece for enabling inhalation of the metered amount of powdered material from one selected perforated area through the conduit; a base rotatably mounted with the container; a spring plate for biasing the metering plate into biased contact with the blade assembly, the spring plate being non-rotatably mounted in the base and including a second set of ratchet teeth for engagin
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: September 14, 1993
    Assignee: Schering Corporation
    Inventors: Thomas J. Ambrosio, Indradat Jagnandan, Henry R. Sochon, Srinivas Manthena, William S. Blake
  • Patent number: 5047175
    Abstract: Salt compositions are disclosed which comprise: (A) at least one salt moiety derived from (A)(I) at least one high-molecular weight polycarboxylic acylating agent, said acylating agent (A)(I) having at least one hydrocarbyl substituent having an average of from about 20 to about 500 carbon atoms, and (A)(I) ammonia, at least one amine, at least oen alkali or alkaline earth metal, and/or at least oen alkali or alkaline earth metal compound; (B) at least one salt moiety derived from (B)(I) at least oen low-molecular weight polycarboxylic acylating agent, said acylating agent (B)(I) optionally having at least one hydrocarbyl substituent having an average of up to about 18 carbona toms, and (B)(II) ammonia, at least one amine, at least one alkali or alkaline earth metal, and/or at least one alkali or alkaline earth metal compund; said components (A) and (B) being coupled together by (C) at least one compound having (i() two or more primary amino groups, (ii) two or more secondary amino groups, (iii) at least one
    Type: Grant
    Filed: November 1, 1988
    Date of Patent: September 10, 1991
    Assignee: The Lubrizol Corporation
    Inventor: John W. Forsberg
  • Patent number: 5047457
    Abstract: Modified asphalt compositions are described which comprise(A) asphalt, and(B) a minor effective amount, sufficient to improve the durability of the asphalt in service, of at least one hydrocarbon-soluble acrylate polymer of the formula ##STR1## wherein R.sup.1 is a lower alkyl group containing from 1 to about 4 carbon atoms, R.sup.2 is a mixture of alkyl groups containing from about 4 to about 20 carbon atoms, and x is an integer providing a weight average molecular weight (Mw) to the acrylate polymer of about 5000 to about 1,000,000.Generally, the modified asphalt compositions will contain from about 0.01 to about 10% by weight, based on the weight of the asphalt, of the acrylate polymer as defined. The modified asphalt compositions of the present invention are useful in roofing and in preparing aggregate-containing asphalt concretes which can be employed as paving compositions.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: September 10, 1991
    Assignee: The Lubrizol Corporation
    Inventor: William A. Higgins
  • Patent number: 5046846
    Abstract: A method of analysis of and an apparatus for analysing a sample comprising the steps of: (A) examining at least one characteristic of a sample as a function of a variable parameter to obtain data, (B) normalizing the data with respect to a model, (C) making a comparison of the normalized data with reference data, and (D) determining from the comparison the quality of the sample. As a function of such determination of quality, control functions may be carried out with respect to a sample that was analyzed, such as a blend sample in a chemical processing plant.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: September 10, 1991
    Assignee: The Lubrizol Corporation
    Inventors: James C. Ray, Logan R. Asari
  • Patent number: 5041598
    Abstract: A composition comprising the reaction product of (A) at least one carboxylic acid acylating agent, (B) at least one amine characterized by the presence within its structure of at least one HN>group, and (C) at least one phosphorus-containing acid of the formula ##STR1## wherein each X.sup.1, X.sup.2, X.sup.3 and X.sup.4 is independently oxygen or sulfur, each m is zero or one, and each R.sup.1 and R.sup.2 is independently a hydrocarbyl group. Aqueous concentrates and water-based functional fluids comprising the foregoing composition are also disclosed.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: August 20, 1991
    Assignee: The Lubrizol Corporation
    Inventor: John W. Forsberg
  • Patent number: 5041622
    Abstract: An improvement in known processes for preparing substituted carboxylic acids useful as acylating agents which comprise reacting (A) at least one aliphatic polymer of one or more lower olefins with (B) an acidic reactant selected from the group consisting of fumaric acid, itaconic acid, maleic acid, and the corresponding anhydrides, lower alkyl esters, acyl chlorides and acyl bromides, in the presence of chlorine can be improved by the steps of (i) reacting at a temperature of about 100.degree.-200.degree. C., a mixture of (A) and (B) in the presence of about 0.05 to 0.15 equivalent of chlorine per equivalent of (A) until all of the chlorine has reacted to provide a first intermediate product (ii) continuing the reaction in the absence of chlorine at a temperature of from about 180.degree.-250.degree. C. until a conversion of 0.4 to 1.1 equivalents of (B) per equivalent of (A) is attained to provide a second intermediate product, and (iii) reacting said second intermediate with about 0.2 to 1.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: August 20, 1991
    Assignee: The Lubrizol Corporation
    Inventor: William M. LeSuer
  • Patent number: 5039434
    Abstract: Subterranean formations are treated with acid, by a method comprising the steps of: (1) forming an acidizing composition by mixing an aqueous acid component with at least one water-soluble organosilicon compound; and (2) injecting the composition into the formation. Suitable organosilicon compounds include water-soluble organosilanes and organosilanes which hydrolyze to form water-soluble silanols. By using the organosilicon compound, movement of formation fine particles is inhibited and swelling of clays by aqueous fluids is reduced, thus tending to maintain formation permeability.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: August 13, 1991
    Assignee: Union Oil Company of California
    Inventors: David R. Watkins, Leonard J. Kalfayan, Gregory S. Hewgill
  • Patent number: 5039433
    Abstract: A method for producing homopolymers and copolymers from amido-sulfonic acid or salt containing monomers in the presence of high energy mechanical mixing utilizing a final stage polymerization temperature of from about 200.degree. F. to below the degradation temperature of the monomer. The process produces a solid homopolymer or copolymer which can be utilized as fluid loss agents.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: August 13, 1991
    Assignee: The Lubrizol Corporation
    Inventors: Thomas M. Sopko, Richard E. Lorentz
  • Patent number: 5039436
    Abstract: Coupled polyamine additives for lubricants, fuels and functional fluids have been discovered. The coupled polyamines are prepared by the cyclization reaction of at least one reactant polyamine reactant with at least one hydrocarbyl polynitrile. This coupled polyamine may be further reacted with a hydrocarbyl carboxylic acid or derivative thereof, a hydrocarbyl phenolic reactant or mixtures thereof to provide an additive having greater oil solubility as well as imparting dispersancy and VI improvement.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: August 13, 1991
    Assignee: The Lubrizol Corporation
    Inventor: Paul E. Adams
  • Patent number: 5037533
    Abstract: The present invention relates to an improved process for beneficiating an ore containing sulfide materials with selective rejection of pyrite, pyrrhotite and other minerals and gangue. In particular, the process is useful for beneficiating ores and recovering metals such as copper, lead, zinc, etc., from said ores. In one embodiment the process comprises the steps of:(A) forming a slurry of at least one crushed mineral-containing ore, water and at least one collector which is an acid, or an anhydride, ester, ammonium salt or metal salt of the acid that is represented by the formula ##STR1## wherein each R.sub.1 and R.sub.2 is independently a hydrocarbyl or hydrocarbyloxy or hydrocarbylthio group;each X.sub.1 and X.sub.2 is independently sulfur or oxygen;R.sub.3 is a divalent hydrocarbyl group, hydrogen or hydrocarbyl group;a is 0 or 1;b is 0 or 1;c is 1 or 2;Q is a divalent, trivalent or tetravalent hydrocarbyl group or --C(X.sub.3)NR.sub.5 Q';X.sub.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: August 6, 1991
    Assignee: The Lubrizol Corporation
    Inventors: Carlos A. Piedrahita, Edward P. Richards
  • Patent number: D344796
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: March 1, 1994
    Assignee: Schering Corporation
    Inventors: Henry R. Sochon, Charles M. Huck, Charles R. Ashley
  • Patent number: D344797
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: March 1, 1994
    Assignee: Schering Corporation
    Inventors: Henry R. Sochon, Charles R. Ashley
  • Patent number: D345013
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: March 8, 1994
    Assignee: Schering Corporation
    Inventors: Charles M. Huck, Charles R. Ashley
  • Patent number: D349572
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: August 9, 1994
    Assignee: Schering Corporation
    Inventors: Indradat Jagnandan, Kim C. Dao
  • Patent number: D350193
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: August 30, 1994
    Assignee: Schering Corporation
    Inventors: Charles M. Huck, Charles R. Ashley, Ken Wilkinson, Henry R. Sochon
  • Patent number: D351343
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: October 11, 1994
    Assignee: Wesley-Jessen Corporation
    Inventors: Robert J. Kellar, Michael F. Reardon, Martin J. Drazba
  • Patent number: D352237
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: November 8, 1994
    Assignee: Wesley-Jessen Corporation
    Inventors: Michael F. Reardon, Robert J. Kellar, Jeffrey D. Aulenbacher
  • Patent number: D353259
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: December 13, 1994
    Assignee: Schering-Plough/Healthcare Products, Inc.
    Inventor: Charles F. Schroer, Jr.