Patents by Inventor Harold W. Mark

Harold W. Mark 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: 5358630
    Abstract: A method for countering the adverse effect of contaminating metals on a crystalline aluminosilicate catalyst comprising contacting the catalyst with a reducing gas under suitable conditions. In a preferred embodiment, the catalyst contains antimony.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: October 25, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Brent J. Bertus, Harold W. Mark, John S. Roberts, Arnold M. Schaffer
  • Patent number: 5053530
    Abstract: Synthesis of isethionic acid comprising contacting an alkali metal isethionate and an organic acid.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: October 1, 1991
    Assignee: Phillips Petroleum Company
    Inventors: John S. Roberts, Harold W. Mark
  • Patent number: 4990656
    Abstract: A polyamine substituted dithiocarbamate compound is provided. Also provided are minerals depressant compounds for recovering mineral values from an ore or concentrate wherein the values are recovered in a froth from an aqueous slurry. A process of forming the minerals depressant compounds and an improved ore flotation process using the minerals depressant compounds are also provided.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: February 5, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Clarence R. Bresson, Harold W. Mark
  • Patent number: 4857179
    Abstract: A process for the recovery of minerals from an ore or concentrate containing the same wherein the minerals are recovered in a froth from an aqueous pulp containing the ore or concentrate and wherein one or more mineral flotation agents are employed in the aqueous pulp to control the type of minerals in the froth is provided. The mineral flotation agents used in carrying out the process comprise compounds formed by the addition of hydrogen sulfide to dicyclopentadiene.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: August 15, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Gary D. Macdonell, Harold W. Mark
  • Patent number: 4806234
    Abstract: A polyamine substituted dithiocarbamate composition is provided. Also provided are minerals depressant compositions for recovering mineral values from an ore or concentrate wherein the values are recovered in a froth from an aqueous slurry. A process of forming the minerals depressant compositions and an improved ore flotation process using the minerals depressant compositions are also provided.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: February 21, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Clarence R. Bresson, Harold W. Mark
  • Patent number: 4747940
    Abstract: Tri-alkali metal di(carboxyalkyl) dithiocarbamates and triammonium-di(carboxyalkyl) dithiocarbamates which can be characterized by the formula ##STR1## wherein R and R' can be the same or different and are selected from the group consisting of alkylene radicals, preferably alkylene radicals each preferably having from 1 to 12 carbon atoms, and wherein M is selected from the group consisting of alkali metal atoms and ammonium; their use as ore flotation depressants; and a process for making these novel compositions are disclosed.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: May 31, 1988
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson, Harold W. Mark
  • Patent number: 4721813
    Abstract: A method for the conversion of mercaptoalkanols to dithiodiglycols having good color properties and low residual odor is provided. Mercaptalkanols are reacted in the presence of small amounts of anhydrous ammonia and an oxygen-containing gas in the absence of any metal-containing catalysts to produce the desired dithiodiglycol products.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: January 26, 1988
    Assignee: Phillips Petroleum Company
    Inventors: Harold W. Mark, John S. Roberts
  • Patent number: 4702821
    Abstract: Carboxyalkyl dithiocarbamates which can be characterized by the formula ##STR1## wherein R is selected from the group consisting of alkylene radicals, wherein R' is selected from the group consisting of hydrogen and methyl and ethyl radicals, R.sup.2 is selected from the group consisting of alkylene radicals and wherein M is selected from the group consisting of ammonium and alkali metal atoms, their use as ore flotation depressants, and a process for making these novel compositions are disclosed.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: October 27, 1987
    Assignee: Phillips Petroleum Company
    Inventors: Clarence R. Bresson, Harold W. Mark
  • Patent number: 4650568
    Abstract: Polyhydroxytrithiocarbonates can be used as depressants in ore flotation.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: March 17, 1987
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson, Harold W. Mark
  • Patent number: 4637833
    Abstract: Hydrocarbyl-substituted sulfinyl and sulfonyl carboxylic acids are effective corrosion inhibitors for surfaces of various metals. In one embodiment, mineral acid compositions such as aqueous hydrochloric acid metal cleaning solutions exhibit diminished corrosiveness when corrosion inhibiting additives of the invention are present in the compositions.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: January 20, 1987
    Assignee: Phillips Petroleum Co.
    Inventors: Merlin R. Lindstrom, Harold W. Mark
  • Patent number: 4619760
    Abstract: Process for the preparation of ore flotation collectors is disclosed comprising reacting an alkali metal salt of a 2-mercaptobenzimidazole with carbon disulfide. Also disclosed is process for recovery of minerals by flotation employing the novel ore flotation collectors prepared as described above.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: October 28, 1986
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson, Harold W. Mark
  • Patent number: 4595538
    Abstract: Tri-alkali metal di(carboxyalkyl) dithiocarbamates and triammonium-di(carboxyalkyl) dithiocarbamates which can be characterized by the formula ##STR1## wherein R and R' can be the same or different and are selected from the group consisting of alkylene radicals, preferably alkylene radicals each preferably having from 1 to 12 carbon atoms, and wherein M is selected from the group consisting of alkali metal atoms and ammonium; their use as ore flotation depressants; and a process for making these novel compositions are disclosed.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: June 17, 1986
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson, Harold W. Mark
  • Patent number: 4559153
    Abstract: Metal working lubricating compositions useful as a precoating oil and as a coating and rolling operation, comprising mineral or synthetic oil and a sulfur containing carboxylic acid such as n-dodecylthioacetic acid and n-butylthioacetic acid. The composition can also contain vegetable oil or animal fat. The lubricant composition provided is particularly useful in the cold rolling of steel and other metals.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: December 17, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Bernard A. Baldwin, Harold W. Mark
  • Patent number: 4554108
    Abstract: Carboxyalkyl dithiocarbamates which can be characterized by the formula ##STR1## wherein R is selected from the group consisting of alkylene radicals, preferably alkylene radicals each having from 1 to 4 carbon atoms, wherein R' is selected from the group consisting of hydrogen and methyl and ethyl radicals, and wherein X is selected from the group consisting of alkali metal atoms, their use as ore flotation suppressants, and a process for making these novel compositions are disclosed.
    Type: Grant
    Filed: July 26, 1983
    Date of Patent: November 19, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Harold W. Mark, Clarence R. Bresson
  • Patent number: 4554068
    Abstract: Carboxyalkyl dithiocarbamates which can be characterized by the formula ##STR1## wherein R is selected from the group consisting of alkylene radicals, wherein R' is selected from the group consisting of hydrogen and methyl and ethyl radicals, and wherein X is selected from the group consisting of alkali metal atoms, their use as ore flotation suppressants, and a process for making these novel compositions are disclosed.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: November 19, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Harold W. Mark, Clarence R. Bresson
  • Patent number: 4535066
    Abstract: A cracking catalyst used to crack oil to produce gasoline or higher-boiling hydrocarbon fuel is contacted with both (A) antimony or a compound thereof such as antimony tris(0,0-dipropyl phosphorodithioate) and (B) a modifying composition consisting essentially of carbon, hydrogen, nitrogen, and sulfur produced by the treatment of a metal salt of a dialkyl dithiocarbamate with a hydrolyzable germanium (IV) compound such as germanium tetrachloride, the contacting of the catalyst with (A) and (B) prior to, during, or after use of the catalyst in a cracking process being effective in precluding or reducing adverse effects of metals such as nickel, vanadium, and iron.
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: August 13, 1985
    Assignee: Philips Petroleum Company
    Inventors: Harold W. Mark, Brent J. Bertus, John S. Roberts, Dwight L. McKay, Lyle E. Fenska
  • Patent number: 4533467
    Abstract: Diammonium bis(carboxyalkyl)-trithiocarbonate salts, dialkali metal bis(carboxyalkyl)-trithiocarbonate salts, their use as flotation agents, and a process for the production of these novel compositions are disclosed.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: August 6, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson, Harold W. Mark
  • Patent number: 4514293
    Abstract: Ammonium N-carboxyalkyl-S-carboalkoxy dithiocarbamates, alkali metal N-carboxyalkyl-S-carboalkoxy dithiocarbamates, their use as flotation agents, and a process for the production of these novel compositions are disclosed.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: April 30, 1985
    Inventors: Clarence R. Bresson, Harold W. Mark
  • Patent number: RE37789
    Abstract: A method for countering the adverse effect of contaminating metals on a crystalline aluminosilicate catalyst comprising contacting the catalyst with a reducing gas under suitable conditions.In a preferred embodiment, the catalyst contains antimony.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: July 16, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Brent J. Bertus, Harold W. Mark, John S. Roberts, Arnold M. Schaffer
  • Patent number: RE37842
    Abstract: A method for countering the adverse effect of contaminating metals on a cystalline aluminosilicate catalyst comprising contacting the catalyst with a metallic passivating agent to effect some passivation of the effects of the contaminant metals and with a reducing gas under suitable conditions. In a preferred embodiment, the catalyst contains antimony.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: September 17, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Brent J. Bertus, Harold W. Mark, John S. Roberts, Arnold M. Schaffer