Patents by Inventor Angeline B. Cardis

Angeline B. Cardis 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: 5492545
    Abstract: Additives which improve the low-temperature properties of distillate fuels are the reaction products of (1) diols, and (2) the product of pyromellitic dianhydride and combinations of two or more different aminoalcohols with long-chain hydrocarbyl groups attached.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: February 20, 1996
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
  • Patent number: 5490863
    Abstract: Additives which improve the low-temperature properties of distillate fuels are the reaction products of (1) diols, and (2) the product of pyromellitic dianhydride and aminoalcohols and amines with long-chain hydrocarbyl groups attached.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: February 13, 1996
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
  • Patent number: 5486301
    Abstract: Reaction products, in which aromatic acid bis(polyether ester) is added to succinimides, are effective antioxidants, dispersants, and detergents for fuels and lubricants.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: January 23, 1996
    Assignee: Mobil Oil Corporation
    Inventors: Guy P. Abramo, David A. Blain, Angeline B. Cardis
  • Patent number: 5466267
    Abstract: Additives which improve the low-temperature properties of distillate fuels are the oligomeric/polymeric reaction products of aromatic anhydrides and epoxides (or their corresponding acid/diol equivalents), with optional termonomers.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: November 14, 1995
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck, Susan W. Johnson
  • Patent number: 5435812
    Abstract: Reaction products, in which aromatic acid bis(polyether ester) is added to succinimides, are effective antioxidants, dispersants, and detergents for fuels and lubricants.
    Type: Grant
    Filed: July 19, 1992
    Date of Patent: July 25, 1995
    Assignee: Mobil Oil Corporation
    Inventors: Guy P. Abramo, David A. Blain, Angeline B. Cardis
  • Patent number: 5409506
    Abstract: Additives which improve the low-temperature properties of distillate fuels are the reaction products of (1) diaminodiols, and (2) the product of pyromellitic dianhydride and aminoalcohols and/or amines with long-chain hydrocarbyl groups attached.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: April 25, 1995
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
  • Patent number: 5370806
    Abstract: Borated dihydrocarbyl dithiocarbamate reaction products have been found to be effective antioxidant/antiwear multifunctional additives for lubricants.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: December 6, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Angeline B. Cardis, Liehpao O. Farng, Andrew G. Horodysky, Abraham O. M. Okorodudu
  • Patent number: 5362410
    Abstract: The incorporation of the heterocyclic saccharin functionality into the alkenylsuccinimide dispersant structures via the Mannich alkylaminoalkylation procedure provides a class of ashless non-phosphorus dispersants with multifunctional antiwear, antioxidant and corrosion inhibiting properties in lubricant compositions.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: November 8, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Abraham O. M. Okorodudu, Angeline B. Cardis
  • Patent number: 5284494
    Abstract: Additives which improve the low-temperature properties of distillate fuels are oligomeric/polymeric reaction products consisting of cross-linked anhydride and cross-linked epoxide (or their corresponding acid/diol equivalents), with optional termonomers.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: February 8, 1994
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck, Susan W. Johnson
  • Patent number: 5284493
    Abstract: The reaction products of (1) anhydrides and/or poly-acids and (2) aminoalcohols or aminoalcohols/amides with long chain hydrocarbyl groups attached improve the low-temperature properties of distillate fuel when added thereto.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: February 8, 1994
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck, Susan W. Johnson
  • Patent number: 5284495
    Abstract: Additives which improve the low-temperature properties of distillate fuels are the oligomeric/polymeric reaction products of anhydrides and one or more of the following long-chain diols: aminodiols, diaminodiols, amidodiols, with optional termonomers.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: February 8, 1994
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck, Susan W. Johnson
  • Patent number: 5284496
    Abstract: Additives which improve the low-temperature properties of distillate fuels are oligomeric/polymeric reaction products of anhydrides and long-chain epoxides (or their corresponding acid/diol equivalents) consisting of hydroxyl promoted polyesters and ester promoted polyesters.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: February 8, 1994
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck, Susan W. Johnson
  • Patent number: 5271748
    Abstract: Additives which improve the low-temperature properties of distillate fuels are the polymeric and/or oligomeric monomers selected from ester/urethane reaction products of a combination of anhydrides and epoxides (or their corresponding acid/diol equivalents), and a urethane precursor and optionally with various suitable reactive materials to provide optional termonomers.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: December 21, 1993
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck, Susan W. Johnson
  • Patent number: 5266081
    Abstract: A fuel additive is the reaction product of an intermediate reaction product of a hydrocarbon-substituted succinic anhydride and an aminosalicylic acid, preferably a 4-aminosalicylic acid. The intermediate is reacted with an aldehyde, preferably formaldehyde and an alkylenepolyamine preferably tetraethylenepentamine. The reaction product is post reacted with a hydrocarbon-substituted succinic anhydride which can be the same or different as the hydrocarbon-substituted succinic anhydride of the intermediate. The additive has dispersant and detergent properties and is effective in liquid hydrocarbon or liquid oxygenated fuels or mixtures of the said fuels.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: November 30, 1993
    Assignee: Mobil Oil Corporation
    Inventors: Noyes L. Avery, Angeline B. Cardis, James V. DeFrancesco, Virginia C. Wiszniewski
  • Patent number: 5266084
    Abstract: Additives which improve the low-temperature properties of distillate fuels are the oligomeric/polymeric reaction products of one or more bicyclic or alkyl anhydrides or their diacid equivalents and one or more long-chain epoxides or their corresponding acid/diol equivalents, with optional termonomers.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: November 30, 1993
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck, Susan W. Johnson
  • Patent number: 5264004
    Abstract: An ashless detergent additive having antioxidant and metal surface protection properties for lubricants or fuels is made from a Mannich condensation reaction between a hydrocarbylbissuccinimide, such as a dimer of a polyisobutenylsuccinimide (derived from tetraethylenepentamine), an aldehyde, such as formaldehyde, and a heteroatom substituted benzoic acid such as salicylic acid, thiosalicylic acid or aminosalicylic acid.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: November 23, 1993
    Assignee: Mobil Oil Corporation
    Inventors: Angeline B. Cardis, Arjun K. Goyal, Carl E. Shanholtz, Virginia C. Wiszniewski
  • Patent number: 5217635
    Abstract: Reaction products in which polyethers are connected to hydroxyalkylated polyamines using diisocyanates have been found to be effective ashless dispersants and detergents for various lubricants and fuels.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: June 8, 1993
    Assignee: Mobil Oil Corporation
    Inventors: David A. Blain, Angeline B. Cardis
  • Patent number: 5205948
    Abstract: Sulfurized olefins, particularly sulfurized isobutylene, are reacted with glycerol monooleate. The resulting product is useful as an additive for lube oil compositions.
    Type: Grant
    Filed: May 11, 1990
    Date of Patent: April 27, 1993
    Assignee: Mobil Oil Corp.
    Inventor: Angeline B. Cardis
  • Patent number: 5205945
    Abstract: A multifunctional antioxidant, antiwear and dispersancy additive for fuels and lubricants is a reaction product of a thiol-substituted diazole, such as aminomercaptothiadiazole (AMTD) or dimercaptothiadiazole (DMTD), an aldehyde and a hydrocarbon-substituted succinimide dimer. The succinimide dimer is derived from polyisobutenyl succinimide and tetraethylenepentamine which are reacted in a mole ratio of 2:1.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: April 27, 1993
    Assignee: Mobil Oil Corporation
    Inventors: Angeline B. Cardis, Arjun K. Goyal, Virginia C. Wiszniewski
  • Patent number: 5200099
    Abstract: Dialky and trialky phosphites are reacted with sulfur. The resulting product is the desired lubricant additive which is mixed with suitable lubricating oils.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: April 6, 1993
    Assignee: Mobil Oil Corporation
    Inventor: Angeline B. Cardis