Patents by Inventor L. Wallen

L. Wallen 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: 11192805
    Abstract: Leachate remediation is performed by synergistic chemical oxidation and photocatalytic-oxidation enhancer system (SCOPES) of municipal landfill leachate to a level that is safe for disposal within regulatory guidelines. The physico-chemical (chemical, spectroscopic, elemental, microstructural and thermal) characteristics of the pre- and post-treated landfill leachate have been investigated to examine the utility of advanced oxidation (AO) processes such as SCOPES to decontaminate the municipal landfill leachate and/or toxic organic wastewater. The experimental results demonstrated successful lowering of chemical oxygen demand (COD) and UV-Vis absorbance for constituent contaminants in the leachate and/or wastewater solutions.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: December 7, 2021
    Assignee: Florida Polytechnic University Board of Trustees
    Inventors: Sesha S. Srinivasan, Scott L. Wallen, Jephté Douyon
  • Publication number: 20190367384
    Abstract: Leachate remediation is performed by synergistic chemical oxidation and photocatalytic-oxidation enhancer system (SCOPES) of municipal landfill leachate to a level that is safe for disposal within regulatory guidelines. The physico-chemical (chemical, spectroscopic. elemental, microstructural and thermal) characteristics of the pre- and post-treated landfill leachate have been investigated to examine the utility of advanced oxidation (AO) processes such as SCOPES to decontaminate the municipal landfill leachate and/or toxic organic wastewater. The experimental results demonstrated successful lowering of chemical oxygen demand (COD) and UV-Vis absorbance for constituent contaminants in the leachate and/or wastewater solutions.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Inventors: Sesha S. Srinivasan, Scott L. Wallen, Jephté Douyon
  • Patent number: 7569205
    Abstract: In certain embodiments, a method of processing detonation nanodiamonds to fractionate the detonation nanodiamonds involves, in order forming a combination of detonation nanodiamonds and a solvent, said solvent containing at least approximately 10% DMSO (v/v), applying a dispersive technique to said combination, subjecting said combination to a procedure that causes nanodiamond particles of a first size range to be substantially spatially separated from nanodiamonds of a second size range, and collecting said nanodiamonds of said first size range essentially free of said second size range. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: August 4, 2009
    Assignee: International Technology Center
    Inventors: Suzanne Ani Ciftan Hens, Scott L. Wallen, Olga Alexander Shenderova
  • Publication number: 20070193871
    Abstract: A system provides for automated control of solvent evaporation, such as may be done for solvent exchange in a solvent that contains analytes or extractants. The automated control is able to ascertain and take appropriate action when a solvent is boiling, when the extractants are free or dry of the solvent, and when there is thermal cycling of the solvent.
    Type: Application
    Filed: February 16, 2007
    Publication date: August 23, 2007
    Inventors: Jeffrey Wiseman, L. Wallen
  • Publication number: 20040191476
    Abstract: Disclosed is a multilayer, gas-permeable structure. The structure includes a polymeric outer film and a polymeric inner film. The two films are permanently adhered to one another in face-to-face orientation. One of the two films, either the outer film or the inner film, but not both, includes a plurality of perforations passing through it. The perforations in the perforated film define a void volume and the void volume large enough so that the gas-permeability of the perforated film has a zero or an insignificant contribution to the gas permeability of the structure as a whole. The structures are useful for packaging fresh-cut produce and other foods.
    Type: Application
    Filed: March 24, 2003
    Publication date: September 30, 2004
    Inventors: Fred L. Wallen, Seth G. Holmen
  • Publication number: 20030072716
    Abstract: A composition is disclosed comprising a carbohydrate-based material a dispersed in carbon dioxide. A general method for synthesizing inexpensive, renewable, non-toxic, non-fluorous, carbohydrate based CO2-philes is disclosed. These CO2-philes are soluble in carbon dioxide. Methods of making the composition are also disclosed. The methods and composition are useful in a variety of applications and can utilize gaseous, liquid and supercritical carbon dioxide. The methods and compositions are useful in the synthesis of surfactants and metal chelates for CO2, as a sizing substrate, in CO2-based coating processes, for impregnation and plasticizing cellulosic and non-cellulosic materials, in pharmaceutical applications, such as crystallization, dispersion and encapsulation of bioactive molecules in solid systems, in the densification of CO2, in the synthesis of biodegradable polymers in CO2, and for carbon dioxide removal, to name just a few.
    Type: Application
    Filed: June 21, 2002
    Publication date: April 17, 2003
    Inventors: Raveendran Poovathinthodiyil, Scott L. Wallen
  • Patent number: 4299850
    Abstract: A package for protecting fragile food items against damage in commerce. The package includes a tray being formed with a cutout defining a saddle and a return bend portion defining a slot having a retaining wall and a plurality of nested, generally U-shaped pastry units associated with the tray saddle and slot. The tray and pastry units being enclosed within an outer plastic film.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: November 10, 1981
    Assignee: American Can Company
    Inventors: Fred L. Wallen, Edward Huxel
  • Patent number: D661469
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: June 12, 2012
    Assignee: Abigale Lynn, LLC
    Inventor: Teresa L. Wallen
  • Patent number: D675695
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: February 5, 2013
    Inventor: Teresa L. Wallen