Patents by Inventor Arthur W. Snow

Arthur W. Snow 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: 11117008
    Abstract: Disclosed is a firefighting composition of the surfactants below and water. The values of m, n, x, and y are independently selected positive integers. R is an organic group. R? is a siloxane group.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 14, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Ramagopal Ananth, Arthur W. Snow, Katherine Hinnant, Spencer L. Giles
  • Patent number: 10466190
    Abstract: An apparatus and method for producing chemielectric point-sensor systems with increased sensitivity and increased selectivity. The chemielectric sensor system includes a sensor/heater assembly, where the sensor is a chemielectric sensor whose resistance or capacitance changes upon exposure to chemical analytes. The heater functionality applies a programmed sequence of one or more thermal pulses to the sensor to quickly raise its temperature. After each thermal pulse ends the change in resistivity of the sensor is measured. Such data as a function of the pulse time and temperature are recorded and analyzed to determine the chemical composition (selectivity) and concentrations in the ambient vapor by comparison to a library dataset. The sensor operation with fast thermal pulses also allows operation at higher frequencies where the noise is lower and hence sensitivity is improved.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: November 5, 2019
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Mario Ancona, F. Keith Perkins, Arthur W. Snow
  • Publication number: 20190321670
    Abstract: Disclosed is a firefighting composition of the surfactants below and water. The values of m, n, x, and y are independently selected positive integers. R is an organic group. R? is a siloxane group.
    Type: Application
    Filed: March 18, 2019
    Publication date: October 24, 2019
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Ramagopal Ananth, Arthur W. Snow, Katherine Hinnant, Spencer L. Giles
  • Patent number: 9217062
    Abstract: Disclosed herein are the compounds shown below. Also disclosed are methods of making the compounds. R1=—O—; R2=any alkyl chain; R3=—CH3, —CN, —COOCH3, -tetrazole, -imidazole, or -triazole; R4=—H or —R5; R5=—H, -halogen, —C?CH, or —C?C—; n is a positive integer; and m is a positive integer.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: December 22, 2015
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Holly L. Ricks-Laskoski, Arthur W Snow, Matthew Laskoski, Stephen M. Deese, Brian L. Chaloux
  • Patent number: 9157842
    Abstract: A molecular concentrator comprising a thermal ratchet for driving molecules from one place to another. A plurality of linear, two-dimensional, and/or three-dimensional arrangements of heater structures are arranged on or suspended above a substrate. Each of the heater structures is configured to strongly sorb a vapor of interest when the heater structure is at room temperature and to rapidly desorb the vapor when the heater structure is at an elevated temperature. The vapor sorption of the individual heater structures is made selective by surface treatments, by monomolecular film depositions or by thicker absorbent polymer depositions. By selectively heating and cooling the heater structures, vapor molecules incident on the heater structures can be directed in a desired manner, e.g., from heater structures closest to a vapor-containing environment to a sensor.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: October 13, 2015
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Mario Ancona, Arthur W. Snow, F. Keith Perkins
  • Patent number: 8986615
    Abstract: A molecular concentrator comprising a thermal ratchet for driving molecules from one place to another. A plurality of conducting wires are arranged on or suspended above a substrate. Each of the wires is configured to strongly sorb a vapor of interest when the wire is at room temperature and to rapidly desorb the vapor when the wire is at an elevated temperature. By selectively heating and cooling the wires, vapor molecules incident on the wires can be directed in a desired manner, e.g., from the wires closest to the vapor-containing environment to a sensor.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: March 24, 2015
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Mario Ancona, Arthur W. Snow, F. Keith Perkins
  • Patent number: 8957253
    Abstract: A hexafluorodimethylcarbinol terminated compound, method of making it, and a composition of matter are disclosed. The compound may have the formula (CF3)2C(OH)-L-M-R. The substructure L may be selected from an optionally substituted propenylene group (—CH2CH?CH—) and trimethylene group (—CH2CH2CH2—). The substructure M may be selected from a substituted or unsubstituted methylene chain, a substituted or unsubstituted oxyalkylene chain, and a silicon-containing chain or combination thereof. In one embodiment, M may be selected from —(CH2)n—, —(OCH2CH2)m—, and —(Si(CH3)2O)p—Si(CH3)2— (CH2)q—, wherein n is at least 1, e.g., n is up to 10, m can be at least 1, e.g., m is up to 10, p can be 0 and in one embodiment is from 1 to 10, and wherein q can be 1 and in one embodiment is from 1 to 12. The substructure R represents one of a halogen, —SH, —SZ, —S—S-M-L-C(CF3)2(OH), wherein Z represents a thiol protecting group.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: February 17, 2015
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Arthur W. Snow
  • Publication number: 20140330043
    Abstract: A hexafluorodimethylcarbinol terminated compound, method of making it, and a composition of matter are disclosed. The compound may have the formula (CF3)2C(OH)-L-M-R. The substructure L may be selected from an optionally substituted propenylene group (—CH2CH?CH—) and trimethylene group (—CH2CH2CH2—). The substructure M may be selected from a substituted or unsubstituted methylene chain, a substituted or unsubstituted oxyalkylene chain, and a silicon-containing chain or combination thereof. In one embodiment, M may be selected from —(CH2)n—, —(OCH2CH2)m—, and —(Si(CH3)2O)p—Si(CH3)2— (CH2)q—, wherein n is at least 1, e.g., n is up to 10, m can be at least 1, e.g., m is up to 10, p can be 0 and in one embodiment is from 1 to 10, and wherein q can be 1 and in one embodiment is from 1 to 12. The substructure R represents one of a halogen, —SH, —SZ, —S—S-M-L-C(CF3)2(OH), wherein Z represents a thiol protecting group.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 6, 2014
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventor: Arthur W. Snow
  • Patent number: 8816116
    Abstract: A hexafluorodimethylcarbinol terminated compound, method of making it, and a composition of matter are disclosed. The compound may have the formula (CF3)2C(OH)-L-M-R. The substructure L may be selected from an optionally substituted propenylene group (—CH2CH?CH—) and trimethylene group (—CH2CH2CH2—). The substructure M may be selected from a substituted or unsubstituted methylene chain, a substituted or unsubstituted oxyalkylene chain, and a silicon-containing chain or combination thereof. In one embodiment, M may be selected from —(CH2)n—, —(OCH2CH2)m—, and —(Si(CH3)2O)p—Si(CH3)2—(CH2)q—, wherein n is at least 1, e.g., n is up to 10, m can be at least 1, e.g., m is up to 10, p can be 0 and in one embodiment is from 1 to 10, and wherein q can be 1 and in one embodiment is from 1 to 12. The substructure R represents one of a halogen, —SH, —SZ, —S—S-M-L-C(CF3)2(OH), wherein Z represents a thiol protecting group.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 26, 2014
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Arthur W. Snow
  • Publication number: 20140107362
    Abstract: A hexafluorodimethylcarbinol terminated compound, method of making it, and a composition of matter are disclosed. The compound may have the formula (CF3)2C(OH)-L-M-R. The substructure L may be selected from an optionally substituted propenylene group (—CH2CH?CH—) and trimethylene group (—CH2CH2CH2—). The substructure M may be selected from a substituted or unsubstituted methylene chain, a substituted or unsubstituted oxyalkylene chain, and a silicon-containing chain or combination thereof. In one embodiment, M may be selected from —(CH2)n—, —(OCH2CH2)m—, and —(Si(CH3)2O)p—Si(CH3)2—(CH2)q—, wherein n is at least 1, e.g., n is up to 10, m can be at least 1, e.g., m is up to 10, p can be 0 and in one embodiment is from 1 to 10, and wherein q can be 1 and in one embodiment is from 1 to 12. The substructure R represents one of a halogen, —SH, —SZ, —S—S-M-L-C(CF3)2(OH), wherein Z represents a thiol protecting group.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 17, 2014
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventor: Arthur W. Snow
  • Publication number: 20140039132
    Abstract: Disclosed herein are the compounds shown below. Also disclosed are methods of making the compounds. R1=—O—; R2=any alkyl chain; R3=—CH3, —CN, —COOCH3, -tetrazole, -imidazole, or -triazole; R4=—H or —R5; R5=—H, -halogen, —C?CH, or —C?C—; n is a positive integer; and m is a positive integer.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 6, 2014
    Inventors: Holly L. Ricks-Laskoski, Arthur W Snow, Matthew Laskoski, Stephen M. Deese, Brian L. Chaloux
  • Patent number: 8618330
    Abstract: A hexafluorodimethylcarbinol terminated compound, method of making it, and a composition of matter are disclosed. The compound may have the formula (CF3)2C(OH)-L-M-R. The substructure L may be selected from an optionally substituted propenylene group (—CH2CH?CH—) and trimethylene group (—CH2CH2CH2—). The substructure M may be selected from a substituted or unsubstituted methylene chain, a substituted or unsubstituted oxyalkylene chain, and a silicon-containing chain or combination thereof. In one embodiment, M may be selected from —(CH2)n—, —(OCH2CH2)m—, and —(Si(CH3)2O)p—Si(CH3)2—(CH2)q—, wherein n is at least 1, e.g., n is up to 10, m can be at least 1, e.g., m is up to 10, p can be 0 and in one embodiment is from 1 to 10, and wherein q can be 1 and in one embodiment is from 1 to 12. The substructure R represents one of a halogen, —SH, —SZ, —S—S-M-L-C(CF3)2(OH), wherein Z represents a thiol protecting group.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: December 31, 2013
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Arthur W Snow
  • Patent number: 8563762
    Abstract: This disclosure concerns a metal oxide surface treatment with a fluoroalkyl silanizing agent.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: October 22, 2013
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Arthur W Snow, Edward E Foos
  • Publication number: 20130204028
    Abstract: This disclosure concerns a metal oxide surface treatment with a fluoroalkyl silanizing agent.
    Type: Application
    Filed: March 8, 2013
    Publication date: August 8, 2013
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Arthur W. Snow, Edward E. Foos
  • Patent number: 8436083
    Abstract: A coating having an adhesive hydrophilic polymer and an amphiphilic additive. The amphiphilic additive has a hydrophilic chain, a biocidal functional group bonded to the hydrophilic chain, and a hydrophobic moiety bonded to the hydrophilic chain or to the biocidal functional group. A method of forming a biocidal surface by providing an article, and coating the article with the above coating. A compound having the formula: Y—(O—CH2—CH2)n—R—(CH2)m—CH3. Y is CH3 or H. R is X is a halogen, and m and n are independently selected positive integers.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: May 7, 2013
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: James H Wynne, Joanne M Jones-Meehan, Arthur W Snow, Leonard J Buckley
  • Patent number: 8420843
    Abstract: The compound is a silane surface treatment agent and is useful for modifying the surfaces of silicon oxide and other metal oxides with hexafluorodimethyl carbinol functional groups. Additionally provided is a surface treatment procedure that effectively bonds it and other alkoxysilanes via homogeneous and heterogeneous amine catalysis onto metal oxide surfaces.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: April 16, 2013
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Arthur W Snow, Edward E Foos
  • Publication number: 20120172489
    Abstract: A coating having an adhesive hydrophilic polymer and an amphiphilic additive. The amphiphilic additive has a hydrophilic chain, a biocidal functional group bonded to the hydrophilic chain, and a hydrophobic moiety bonded to the hydrophilic chain or to the biocidal functional group. A method of forming a biocidal surface by providing an article, and coating the article with the above coating. A compound having the formula: Y—(O—CH2—CH2)n—R—(CH2)m—CH3. Y is CH3 or H. R is X is a halogen, and m and n are independently selected positive integers.
    Type: Application
    Filed: January 7, 2008
    Publication date: July 5, 2012
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: James H. Wynne, Joanne M. Jones-Meehan, Arthur W. Snow, Leonard J. Buckley
  • Patent number: 8134024
    Abstract: Disclosed is a new ionic liquid monomer salt and methods of is synthesis and polymerization. The ionic liquid monomer salt is prepared by mixing equimolar amounts of an amine, such as tris[2-(2-methoxyethoxy)-ethyl]amine and an acid functionalized polymerizable monomer, such as 2-acrylamido-2-methyl-1-propanesulfonic acid, which is stirred at ambient temperature until salt formation is complete. Also disclosed is a new ionic liquid polymer salts and method for making the same. The synthesis of 2-acrylamido-2-methyl-1-propanesulfonic acid-ammonium salt polymer is accomplished by adding 2,2?-azobisisobutyronitrile (AIBN) to the ionic liquid monomer salt and heating the homogeneous melt at 70° C. for 18 hr.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: March 13, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Holly L Ricks-Laskoski, Arthur W Snow
  • Patent number: RE44032
    Abstract: Disclosed is a new ionic liquid monomer salt and methods of is synthesis and polymerization. The ionic liquid monomer salt is prepared by mixing equimolar amounts of an amine, such as tris[2-(2-methoxyethoxy)-ethyl]amine and an acid functionalized polymerizable monomer, such as 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS), which is stirred at ambient temperature until salt formation is complete. Also disclosed is a new ionic liquid polymer salts and method for making the same. The synthesis of AMPS 2-acrylamido-2-methyl-1-propanesulfonic acid-ammonium salt polymer is accomplished by adding 2,2?-azobisisobutyronitrile (AIBN) to the ionic liquid monomer salt and heating the homogeneous melt at 70° C. for 18 hr.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: February 26, 2013
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Holly L. Ricks-Laskoski, Arthur W Snow
  • Patent number: RE44988
    Abstract: Disclosed is a new ionic liquid monomer salt and methods of is synthesis and polymerization. The ionic liquid monomer salt is prepared by mixing equimolar amounts of an amine, such as tris[2-(2-methoxyethoxy)-ethyl]amine and an acid functionalized polymerizable monomer, such as 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS), which is stirred at ambient temperature until salt formation is complete. Also disclosed is a new ionic liquid polymer salts and method for making the same. The synthesis of AMPS-ammonium salt polymer is accomplished by adding 2,2?-azobisisobutyronitrile (AIBN) to the ionic liquid monomer salt and heating the homogeneous melt at 70° C. for 18 hr.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: July 1, 2014
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Holly L. Ricks-Laskoski, Arthur W. Snow