Patents by Inventor Steven A. Policastro

Steven A. Policastro 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: 11029244
    Abstract: The invention is directed to a real-time, zero resistance ammeter (ZRA) galvanic corrosion detection instrument that is adapted to measure corrosion under atmospheric conditions. The instrument may be used in accordance with methods for selecting materials based on environmental conditions and electrolyte chemistries. The electrochemical ZRA test cell of the invention may further be used to determine galvanic corrosion susceptibility, aid in forecasting corrosion, and determine the extent of corrosion based on environmental factors.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: June 8, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Carlos M. Hangarter, Steven A. Policastro
  • Publication number: 20210041786
    Abstract: An apparatus for electrochemical experimentation with an isolated microstructural region on a surface comprising a metal sample coated with a photoresist, a region of interest, a light source, comprising optoelectronic devices such as spatial light modulators or digital micromirror devices for direct modulation of the light distribution itself and avoiding the use of a mask, wherein the exposed region is created by light from the light source and wherein the metal sample is immersed.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Steven A. Policastro, Raymond C Y Auyeung, Alberto Piqué, Farrel Martin
  • Patent number: 10824075
    Abstract: An apparatus for electrochemical experimentation with an isolated microstructural region on a surface comprising a metal sample coated with a photoresist, a region of interest, a light source, comprising optoelectronic devices such as spatial light modulators or digital micromirror devices for direct modulation of the light distribution itself and avoiding the use of a mask, wherein the exposed region is created by light from the light source and wherein the metal sample is immersed. A method for isolating microstructural regions or features on a surface for electrochemical experimentation comprising the steps of providing a metal sample, coating the metal sample, selecting a region of interest, creating exposed photoresist with direct modulation of the light distribution itself by optoelectronic devices such as spatial light modulators or digital micromirror devices and without a mask.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: November 3, 2020
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Steven A. Policastro, Raymond C Y Auyeung, Alberto Piqué, Farrel Martin
  • Publication number: 20180267407
    Abstract: An apparatus for electrochemical experimentation with an isolated microstructural region on a surface comprising a metal sample coated with a photoresist, a region of interest, a light source, comprising optoelectronic devices such as spatial light modulators or digital micromirror devices for direct modulation of the light distribution itself and avoiding the use of a mask, wherein the exposed region is created by light from the light source and wherein the metal sample is immersed. A method for isolating microstructural regions or features on a surface for electrochemical experimentation comprising the steps of providing a metal sample, coating the metal sample, selecting a region of interest, creating exposed photoresist with direct modulation of the light distribution itself by optoelectronic devices such as spatial light modulators or digital micromirror devices and without a mask.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 20, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Steven A. Policastro, Raymond C Y Auyeung, Alberto Piqué, Farrel Martin
  • Patent number: 10018916
    Abstract: An apparatus for electrochemical experimentation with an isolated microstructural region on a surface comprising a metal sample coated with a photoresist, a region of interest, an exposed region of photoresist and unexposed region of photoresist wherein the exposed region is created by light and creating a developed region of unexposed photoresist, and an adhesive strip with a first perforated window over the region of interest and a sealed waterproof container with a second larger perforated window over the first perforated window. A method for isolating microstructural regions for electrochemical experimentation comprising providing a metal sample, identifying regions of interest, coating the metal sample, selecting regions of interest, exposing with light and creating exposed photoresist and unexposed photoresist by laser lithography without a mask, and immersing the metal sample in a developer solution and creating developed regions of unexposed photoresist.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: July 10, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Steven A. Policastro, Raymond C Y Auyeung, Alberto Piqué, Farrell Martin
  • Publication number: 20070023466
    Abstract: The invention is a removable golf cart rack for carrying articles. The article carrier includes a support rack configured to slide over a rounded base and be held in place by gravity with the base situated between horizontal bars of the article carrier. In use, the article carrier can be easily situated on the base. During non-use, the article carrier is simply lifted off of the base, providing an aesthetically pleasing and safer alternative to typical racks mounted to golf carts using hardware.
    Type: Application
    Filed: November 17, 2005
    Publication date: February 1, 2007
    Inventor: Steven Policastro