Ram Kumar Gupta

US Patent:

20220410112, Dec 29, 2022

Filed:

Nov 27, 2020

Appl. No.:

17/780459

Inventors:

- Richmond VA, US
Ram B. Gupta - Richmond VA, US

International Classification:

B01J 19/00
C01G 53/00

Abstract:

Slug flow manufacturing systems and methods for production of battery microparticle materials such as nickel-cobalt-manganese oxide (NCM) are disclosed. The slug flow reactor system is capable of producing microparticles reproducibly and continuously in desired scales. The system may be run with fast kinetics (e.g., complete reaction from nucleation to particle recovery completes within a few minutes) and near-ambient reaction temperature (e.g., allowing to use inexpensive plastic tubing). The system allows control of composition (overall, and radial profile) and size of microparticles without changing chemistry nor increasing temperature. The platforms offers the ability to conveniently generate uniform microparticles, of controllable size with an ease of scale up.

US Patent:

20150135445, May 21, 2015

Filed:

Nov 21, 2014

Appl. No.:

14/549776

Inventors:

- St. Louis MO, US
Ronald Kramer - St. Louis MO, US
Nicholas Marshall - Charleston SC, US
Jason Rosenberg - Shorewood WI, US
Ram B. Gupta - Richmond VA, US

International Classification:

D06M 10/06

US Classification:

811551, 10628713

Abstract:

A method for treating a fabric for ultraviolet radiation protection is disclosed which comprises the steps of adding zinc oxide nanoparticles to a solution of 3-glycidyloxypropyl-trimethoxysilane, adding silicon dioxide to the mixture of zinc oxide nanoparticles and 3-glycidyloxypropyl-trimethoxysilane, placing a fabric in the mixture of zinc oxide nanoparticles, 3-glycidyloxypropyl-trimethoxysilane, and silicon dioxide, curing the fabric, and washing the fabric.

US Patent:

20150107029, Apr 23, 2015

Filed:

Oct 24, 2014

Appl. No.:

14/522844

Inventors:

Robert B. Kramer - St. Louis MO, US
Ronald Kramer - St. Louis MO, US
Nicholas Marshall - Charleston SC, US
Jason Rosenberg - Shorewood WI, US
Ram B. Gupta - Richmond VA, US

International Classification:

D06M 11/44
D06M 23/10
D06M 23/02
D06M 13/513

US Classification:

811551

Abstract:

A method for treating a fabric for ultraviolet radiation protection, enhanced resistance to degradation, and enhanced resistance to fire is disclosed which comprises the steps of adding zinc oxide nanoparticles to a solution of 3-glycidyloxypropyl-trimethoxysilane, placing a fabric in the mixture of zinc oxide particles and 3-glycidyloxypropyl-trimethoxysilane, curing the fabric, and washing the fabric. Other methods of treating a fabric are disclosed.