Patents by Inventor Patrick M. Quinlan

Patrick M. Quinlan 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).

  • Quaternary ammonium derivatives of 1,4-thiazine sulfonic acids
    Patent number: 4720492
    Abstract: This invention relates to compositions of the formula ##STR1## where R is a hydrocarbon, A is alkylene, and Z is S, SO, SO.sub.2, and salts thereof. This invention also relates to uses thereof, for example as microbiocidal agents, corrosion inhibitors, etc.
    Type: Grant
    Filed: January 9, 1986
    Date of Patent: January 19, 1988
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Acid inhibitor composition
    Patent number: 4670186
    Abstract: There is described a composition comprising an acylated, alkylated polyamine, an alkylated polyamine, an alkynol and a surfactant. The compositions are useful as corrosion inhibitors for acid systems and ferrous pickling systems and in acidizing media in the treatment of oil-bearing earth formations.
    Type: Grant
    Filed: December 17, 1982
    Date of Patent: June 2, 1987
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Inhibiting corrosion with quaternary ammonium derivatives of 1,4-thiazine sulfonic acids
    Patent number: 4578243
    Abstract: This invention relates to compositions of the formula ##STR1## where R is a hydrocarbon, A is alkylene, and Z is S, SO, SO.sub.2, and salts thereof. This invention also relates to uses thereof, for example as microbiocidal agents, corrosion inhibitors, etc.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: March 25, 1986
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Quaternary ammonium derivatives of 1,4 thiazine sulfonic acids
    Patent number: 4569992
    Abstract: This invention relates to compositions of the formula ##STR1## where R is a hydrocarbon, A is alkylene, and Z is S, SO, SO.sub.2, and salts thereof. This invention also relates to uses thereof, for example as microbiocidal agents, corrosion inhibitors, etc.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: February 11, 1986
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Halide free octahydrophenanthridine corrosion inhibitors
    Patent number: 4559163
    Abstract: This invention relates to non-halogen salts of nitrogen and/or nitrogen-sulfur heterocyclics as corrosion inhibitors for stainless steel-containing systems. These are more effective as corrosion inhibitors when employed in combination with surfactants, preferably of the non-ionic type such as oxyalkylates.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: December 17, 1985
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Mixtures of non-halogen salts of nitrogen heterocyclics and nitrogen-sulfur heterocyclics
    Patent number: 4539140
    Abstract: This invention relates to non-halogen salts of nitrogen and/or nitrogen-sulfur heterocyclics as corrosion inhibitors for stainless steel-containing systems. These are more effective as corrosion inhibitors when employed in combination with surfactants, preferably of the non-ionic type such as oxyalkylates.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: September 3, 1985
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Halide free corrosion inhibitors
    Patent number: 4525296
    Abstract: This invention relates to non-halogen salts of nitrogen and/or nitrogen-sulfur heterocyclics as corrosion inhibitors for stainless steel-containing systems. These are more effective as corrosion inhibitors when employed in combination with surfactants, preferably of the non-ionic type such as oxyalkylates.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: June 25, 1985
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Use of quaternized derivatives of polymerized pyridines and quinolines as microbiocides
    Patent number: 4522643
    Abstract: This invention relates to alkylated derivatives of polymerized aromatic nitrogen heterocyclic compounds as illustrated by polymerized pyridine, quinoline and derivatives thereof; and uses thereof.These compositions are polymerized by treating said aromatic nitrogen heterocyclic compounds at elevated temperatures and pressures with catalytic amounts of alkyl halides and then alkylating the polymerized products formed.The compositions used in this invention are useful in providing improved means for controlling microbiological organisms including bacteria, fungi, algae, protozoa and the like, present in water and hydrocarbon systems.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: June 11, 1985
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Halide free corrosion inhibitors
    Patent number: 4514320
    Abstract: This invention relates to non-halogen salts of nitrogen and/or nitrogen-sulfur heterocyclics as corrosion inhibitors for stainless steel-containing systems. These are more effective as corrosion inhibitors when employed in combination with surfactants, preferably of the non-ionic type such as oxyalkylates.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: April 30, 1985
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids
    Patent number: 4494977
    Abstract: This invention relates to quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids; and to the preparation and uses thereof.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: January 22, 1985
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Silicon-containing quaternary ammonium thiazines
    Patent number: 4418195
    Abstract: This invention relates to silicon-containing thiazines and to the process of preparing them. These are illustrated by the following formulae: ##STR1## where R and R' are substituted groups, for example hydrocarbon groups such as alkyl, aryl, cycloalkyl, etc.; A is alkylene, Z is a sulfur-containing group such as S, SO, SO.sub.2 and X is an anion.These compositions have a wide variety of uses including their use as corrosion inhibitors, microbiocides, etc.
    Type: Grant
    Filed: July 11, 1977
    Date of Patent: November 29, 1983
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Inhibition of microbiological growth with thiazine quaternary ammonium salts of polyepihalohydrin
    Patent number: 4372775
    Abstract: This invention relates to thiazine quaternary ammonium salts of polyepihalohydrin and the preparation and uses thereof. The compositions are ideally expressed by the polymer unit ##STR1## where Z is S, SO, or SO.sub.2,R is hydrogen or a hydrocarbon group,R' is a hydrocarbon group, andX is halogen.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: February 8, 1983
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Inhibition of corrosion with thiazine quaternary ammonium salts of polyepihalophydrin
    Patent number: 4371497
    Abstract: This invention relates to thiazine quaternary ammonium salts of polyepihalohydrin and the preparation and uses thereof. The compositions are ideally expressed by the polymer unit ##STR1## where Z is S, SO, or SO.sub.2,R is hydrogen or a hydrocarbon group,R' is a hydrocarbon groupand X is halogen.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: February 1, 1983
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • .alpha.-1,4-Thiazine alkanephosphonic acids
    Patent number: 4361555
    Abstract: This invention relates to .alpha.-1,4-thiazine alkanephosphonic acids; and to the preparation and uses thereof.
    Type: Grant
    Filed: October 2, 1980
    Date of Patent: November 30, 1982
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Use of quaternized derivatives of polymerized pyridines and quinolines as water clarifiers
    Patent number: 4358382
    Abstract: This invention relates to alkylated derivatives of polymerized aromatic nitrogen heterocyclic compounds as illustrated by polymerized pyridine, quinoline and derivatives thereof; and uses thereof.These compositions are polymerized by treating said aromatic nitrogen heterocyclic compounds at elevated temperatures and pressures with catalytic amounts of alkyl halides and then alkylating the polymerized products formed.The polymers of this disclosure are useful in many areas including utility as corrosion inhibitors, water clarification, as microbiocides, in resolving emulsions and the like.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: November 9, 1982
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Clarification process with thiazine quaternary ammonium salts of polyepihalohydrin
    Patent number: 4354945
    Abstract: This invention relates to thiazine quaternary ammonium salts of polyepihalohydrin and the preparation and uses thereof. The compositions are ideally expressed by the polymer unit ##STR1## where Z is S, SO, or SO.sub.2, R is hydrogen or a hydrocarbon group,R' is a hydrocarbon groupand X is halogen.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: October 19, 1982
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Di-quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids
    Patent number: 4346217
    Abstract: This invention relates to novel di-quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids; the preparation thereof; and uses thereof.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: August 24, 1982
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Quaternary alkynoxymethyl amines
    Patent number: 4343720
    Abstract: This invention relates to quaternaries of alkynoxymethyl amines and uses thereof. These may be summarized by the following formulae: ##STR1## where R and R' are substituted groups such as alkyl, aryl, etc.; R''' is an acetylenic group; and X is an anion; and ##STR2## where R and R''' having the same meaning as in (1) and Z is a bridging group, preferably hydrocarbon such as alkylene, alkinylene, alkenylene, arylene, etc.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: August 10, 1982
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Microbiocidal process using di-quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids
    Patent number: 4342584
    Abstract: This invention relates to novel di-quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids; the preparation thereof; and uses thereof.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: August 3, 1982
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Use of quaternized derivatives of polymerized pyridines and quinolines as corrosion inhibitors
    Patent number: 4341657
    Abstract: This invention relates to alkylated derivatives of polymerized aromatic nitrogen heterocyclic compounds as illustrated by polymerized pyridine, quinoline and derivatives thereof; and uses thereof.These compositions are polymerized by treating said aromatic nitrogen heterocyclic compounds at elevated temperatures and pressures with catalytic amounts of alkyl halides and then alkylating the polymerized products formed.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: July 27, 1982
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan