Patents by Inventor Manjesh KUMAR

Manjesh KUMAR 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: 11866325
    Abstract: The methods for synthesizing mordenite (MOR) zeolite crystals described herein utilize a combination of organics and produce MOR crystals with reduced size, higher Si/Al ratio, fewer stacking faults, less occluded organics in the final product, and a longer catalyst lifetime.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: January 9, 2024
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Jeffrey D. Rimer, Manjesh Kumar
  • Publication number: 20210214237
    Abstract: The methods for synthesizing mordenite (MOR) zeolite crystals described herein utilize a combination of organics and produce MOR crystals with reduced size, higher Si/Al ratio, fewer stacking faults, less occluded organics in the final product, and a longer catalyst lifetime.
    Type: Application
    Filed: May 15, 2019
    Publication date: July 15, 2021
    Applicant: University of Houston System
    Inventors: Jeffrey D. Rimer, Manjesh Kumar
  • Patent number: 10662070
    Abstract: Embodiments of the invention generally provide compositions of crystalline zeolite materials with tailored crystal habits and the methods for forming such crystalline zeolite materials. The methods for forming the crystalline zeolite materials include binding one or more zeolite growth modifiers (ZGMs) to the surface of a zeolite crystal, which results in the modification of crystal growth rates along different crystallographic directions, leading to the formation of zeolites having a tailored crystal habit. The improved properties enabled by the tailored crystal habit include a minimized crystal thickness, a shortened internal diffusion pathlength, and a greater step density as compared to a zeolite having the native crystal habit prepared by traditional processes. The tailored crystal habit provides the crystalline zeolite materials with an aspect ratio of about 4 or greater and crystal surfaces having a step density of about 25 steps/?m2 or greater.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: May 26, 2020
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Jeffrey D. Rimer, Manjesh Kumar
  • Publication number: 20190144291
    Abstract: Embodiments of the invention generally provide compositions of crystalline zeolite materials with tailored crystal habits and the methods for forming such crystalline zeolite materials. The methods for forming the crystalline zeolite materials include binding one or more zeolite growth modifiers (ZGMs) to the surface of a zeolite crystal, which results in the modification of crystal growth rates along different crystallographic directions, leading to the formation of zeolites having a tailored crystal habit. The improved properties enabled by the tailored crystal habit include a minimized crystal thickness, a shortened internal diffusion pathlength, and a greater step density as compared to a zeolite having the native crystal habit prepared by traditional processes. The tailored crystal habit provides the crystalline zeolite materials with an aspect ratio of about 4 or greater and crystal surfaces having a step density of about 25 steps/?m2 or greater.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 16, 2019
    Applicant: University of Houston System
    Inventors: Jeffrey D. Rimer, Manjesh Kumar
  • Patent number: 10173903
    Abstract: Embodiments of the invention generally provide compositions of crystalline zeolite materials with tailored crystal habits and the methods for forming such crystalline zeolite materials. The methods for forming the crystalline zeolite materials include binding one or more zeolite growth modifiers (ZGMs) to the surface of a zeolite crystal, which results in the modification of crystal growth rates along different crystallographic directions, leading to the formation of zeolites having a tailored crystal habit. The improved properties enabled by the tailored crystal habit include a minimized crystal thickness, a shortened internal diffusion pathlength, and a greater step density as compared to a zeolite having the native crystal habit prepared by traditional processes. The tailored crystal habit provides the crystalline zeolite materials with an aspect ratio of about 4 or greater and crystal surfaces having a step density of about 25 steps/?m2 or greater.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: January 8, 2019
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Jeffrey D. Rimer, Manjesh Kumar
  • Publication number: 20150360964
    Abstract: Embodiments of the invention generally provide compositions of crystalline zeolite materials with tailored crystal habits and the methods for forming such crystalline zeolite materials. The methods for forming the crystalline zeolite materials include binding one or more zeolite growth modifiers (ZGMs) to the surface of a zeolite crystal, which results in the modification of crystal growth rates along different crystallographic directions, leading to the formation of zeolites having a tailored crystal habit. The improved properties enabled by the tailored crystal habit include a minimized crystal thickness, a shortened internal diffusion pathlength, and a greater step density as compared to a zeolite having the native crystal habit prepared by traditional processes. The tailored crystal habit provides the crystalline zeolite materials with an aspect ratio of about 4 or greater and crystal surfaces having a step density of about 25 steps/?m2 or greater.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 17, 2015
    Inventors: Jeffrey D. RIMER, Manjesh KUMAR