Patents by Inventor Nicholas J. FILIPANCIC

Nicholas J. FILIPANCIC 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).

  • Ligand-modified filter and methods for reducing metals from liquid compositions
    Patent number: 11772055
    Abstract: Described are filter materials having polycarboxyl ligands, such as iminodiacetic acid, which are highly effective for filtering metals or metal ions from fluids. The filter materials can be particularly useful to filter various fluid compositions, such as those used for wet etching, removing photoresist, and cleaning steps in microelectronic device manufacturing.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: October 3, 2023
    Assignee: ENTEGRIS, INC.
    Inventors: James Hamzik, Jad A. Jaber, Nicholas J. Filipancic, Justin Brewster
  • LIGAND-MODIFIED FILTER AND METHODS FOR REDUCING METALS FROM LIQUID COMPOSITIONS
    Publication number: 20220410084
    Abstract: Described are filter materials including a polyol ligand, such as n-methylglucamine, and/or a polyphosphonic acid ligand, which are highly effective for filtering metals or metal ions from fluids. The filter materials can be particularly useful to filter basic and acidic fluid compositions, such as those used for wet etching, removing photoresist, and cleaning steps in microelectronic device manufacturing.
    Type: Application
    Filed: August 31, 2022
    Publication date: December 29, 2022
    Inventors: James Hamzik, Jad A. Jaber, Justin Brewster, Nicholas J. Filipancic
  • Ligand-modified filter and methods for reducing metals from liquid compositions
    Patent number: 11465104
    Abstract: Described are filter materials including a polyol ligand, such as n-methylglucamine, and/or a polyphosphonic acid ligand, which are highly effective for filtering metals or metal ions from fluids. The filter materials can be particularly useful to filter basic and acidic fluid compositions, such as those used for wet etching, removing photoresist, and cleaning steps in microelectronic device manufacturing.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: October 11, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: James Hamzik, Jad A. Jaber, Justin Brewster, Nicholas J. Filipancic
  • ACID RESISTANT FILTER MEDIA
    Publication number: 20210395566
    Abstract: Provided are certain membranes useful in the filtration of liquids and removal of various contaminants therein. In certain aspects the membranes have as one component a polyamide such as Nylon 11 and/or Nylon 12. Also provided is methodology for manufacturing such membranes and their use in filtration and purification of liquids. Membranes of the disclosure thus prepared exhibit superior acid stability when compared to polyamide membranes prepared from Nylon 6 or Nylon 6,6.
    Type: Application
    Filed: June 23, 2021
    Publication date: December 23, 2021
    Inventors: James HAMZIK, KwokShun CHENG, Jad A. JABER, Nicholas J. FILIPANCIC
  • LIGAND-MODIFIED FILTER AND METHODS FOR REDUCING METALS FROM LIQUID COMPOSITIONS
    Publication number: 20210260537
    Abstract: Described are filter materials having polycarboxyl ligands, such as iminodiacetic acid, which are highly effective for filtering metals or metal ions from fluids. The filter materials can be particularly useful to filter various fluid compositions, such as those used for wet etching, removing photoresist, and cleaning steps in microelectronic device manufacturing.
    Type: Application
    Filed: February 24, 2021
    Publication date: August 26, 2021
    Inventors: James HAMZIK, Jad A. JABER, Nicholas J. FILIPANCIC, Justin BREWSTER
  • LIGAND-MODIFIED FILTER AND METHODS FOR REDUCING METALS FROM LIQUID COMPOSITIONS
    Publication number: 20200254398
    Abstract: Described are filter materials including a polyol ligand, such as n-methylglucamine, and/or a polyphosphonic acid ligand, which are highly effective for filtering metals or metal ions from fluids. The filter materials can be particularly useful to filter basic and acidic fluid compositions, such as those used for wet etching, removing photoresist, and cleaning steps in microelectronic device manufacturing.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 13, 2020
    Inventors: James HAMZIK, Jad A. JABER, Justin BREWSTER, Nicholas J. FILIPANCIC
  • HYDROPHILIC FILTER MEMBRANE WITH PENDANT HYDROPHILIC GROUPS, AND RELATED METHODS OF PREPARATION AND USE
    Publication number: 20200171442
    Abstract: Described are hydrophilic polymers (including in the form of a filter membranes that includes hydrophilic polymer) having pendant ionic groups; to methods of making the hydrophilic polymer with pendant ionic groups and derivative membranes and filters; and to method of using the filter membranes for filtering a fluid such as a liquid chemical to remove unwanted material from the fluid.
    Type: Application
    Filed: November 5, 2019
    Publication date: June 4, 2020
    Inventors: Nicholas J. FILIPANCIC, James HAMZIK