Patents by Inventor Joseph B. Kejha

Joseph B. Kejha 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).

  • Publication number: 20230013240
    Abstract: Novel, rechargeable magnesium/magnesium sulfide batteries are disclosed therein, having energy density competitive with lithium batteries, high cycle life, and lower cost. Production method of stabilized MgS is also described, as well as various cells constructions.
    Type: Application
    Filed: July 13, 2021
    Publication date: January 19, 2023
    Inventor: Joseph B. Kejha
  • Patent number: 10577044
    Abstract: Safe, three-wheeled tilting scooter or motorcycle frames with two front steerable, non-tilting wheels are described herein, as well as three-wheeled tilting vehicles with various propulsion systems mounted on such frames are also disclosed. Said vehicles are preferably non-polluting, such as electric or fueled by hydrogen.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: March 3, 2020
    Assignee: H2 HYBRID SCOTTERS LLC
    Inventor: Joseph B. Kejha
  • Publication number: 20190055904
    Abstract: A safe hydrogen fueled IC engine system is described herein, having an electronic control of safety valves and ignition timing. The system is useable with any IC engine and especially with electric hybrid drive systems.
    Type: Application
    Filed: August 17, 2017
    Publication date: February 21, 2019
    Inventor: Joseph B. Kejha
  • Patent number: 7829223
    Abstract: There is provided a process for preparing lithium cobaltate and to lithium-containing cobalt oxides which is used in lithium battery cathodes. Also, there is provided cathodes for lithium batteries.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: November 9, 2010
    Inventors: W. Novis Smith, Joseph B. Kejha, James J. Gormley, Joel R. McCloskey
  • Patent number: 7713313
    Abstract: The present invention provides a process for preparing lithium manganate having lithium-in cell stability by utilizing manganese oxides having lower oxidation states in the furnacing step and by using stoichiometric amounts of lithium hydroxide monohydrate and a manganese oxide in water as a starting mixture. Cr, Ni, Mg, AL oxides are optionally added.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: May 11, 2010
    Assignee: Lithdyne LLC
    Inventors: W. Novis Smith, Joel R. McCloskey, Joseph B. Kejha, James J. Gormley
  • Publication number: 20090197163
    Abstract: A safe high rate primary lithium battery with solid cathode and a lithium anode is provided, having a high rate of discharge and higher energy density due to the lithiated cathode materials contained therein.
    Type: Application
    Filed: March 17, 2009
    Publication date: August 6, 2009
    Inventor: Joseph B. Kejha
  • Publication number: 20090140524
    Abstract: Deployable submarine hydroelectric generator for conversion of kinetic energy of deep ocean currents into electricity by having an electric generator mounted in a sealed hydrodynamic, buoyant vessel with tail fins, and connected by a shaft to a rotary turbine blades at the tail end of the submarine vessel, which vessel is anchored at desired depth to the bottom of the ocean by a cable. The drag of the turbine blades causes the vessel to self-steer against the direction of the ocean current. An electric cable is also provided, connecting said electric generator with electric grid on the land. Such generator is out of sight, unlike windmills, and is environmentally friendly to the sea life, due to slow rotating blades. This clean electricity can also be used for production of low cost hydrogen by electrolysis of sea water.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Inventor: Joseph B. Kejha
  • Publication number: 20080308328
    Abstract: This invention pertains to an economical method of easy conversion of any internal combustion fueled vehicle into a fuel saving plug-in hybrid electric vehicle (PHEV) by an add-on kit, without replacing the engine and with a minimal modification of the vehicle body. The converted vehicle substantially saves fuel as compared to the vehicle before this conversion.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 18, 2008
    Inventor: Joseph B. Kejha
  • Publication number: 20080236910
    Abstract: This invention pertains to an economical method of easy conversion of any internal combustion fueled vehicle into a fuel saving hybrid electric vehicle (HEV) by an add-on kit, without replacing the engine and with a minimal modification of the vehicle body. The converted vehicle has a substantially longer driving range on the same amount of fuel than the vehicle before this conversion.
    Type: Application
    Filed: March 31, 2007
    Publication date: October 2, 2008
    Inventors: Joseph B. Kejha, Sagar N. Venkateswaran
  • Publication number: 20080238140
    Abstract: A long range and safer, steerable vehicle body for carrying at least one passenger and which body rides on at least two wheels and is constructed from ultra-lightweight materials, such as magnesium frame with polyolefin body panels. The frame is constructed from extruded tubings, joined with aid of end fittings, adhesive and body-bound pins, which eliminates expensive welding. The body panels have double walls, or a honeycomb sandwich construction. The vehicle body may carry an advanced, non-polluting hybrid propulsion system and may ride on pressure-airless tires.
    Type: Application
    Filed: June 4, 2008
    Publication date: October 2, 2008
    Inventor: Joseph B. Kejha
  • Publication number: 20080184906
    Abstract: An advanced internal combustion-electric hybrid airplane, having at least double the flight range and flight duration than a conventional equivalent airplane, while using the same amount of any desirable fuel. This is achieved by using 2-3× smaller and ultra-lightweight engine for cruising, and ultra-lightweight electric motor powered by lithium batteries during take-off and climbing. The electric motor becomes a generator during cruising and descent, recharging said batteries. The airplane has also temporary silent electric stealth capability and added safety by the electric back-up power. Due to its high efficiency, the operational cost is substantially reduced. Additional features include highly advanced, minimum drag and weight airframe.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 7, 2008
    Inventor: Joseph B. Kejha
  • Patent number: 7399554
    Abstract: A hybrid rechargeable lithium battery, which includes a plurality of high power rechargeable cells, having nano-particles therein, and high energy density rechargeable cells, with the high energy cells recharging the high power cells. The battery preferably includes a low volt parallel charger to simultaneously and individually charge both the high power and high energy cells, through a protective device. All cells are then discharged in series at high voltage, and are individually protected from over discharge. A rechargeable battery having both high power and high energy density cells is thus provided.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: July 15, 2008
    Inventor: Joseph B. Kejha
  • Publication number: 20080014503
    Abstract: A high power high voltage lithium-ion cell, which includes an anode of lithium titanate (Li4Ti5012), a cathode of lithium cobalt phosphate (LiCoPO4), and a non-aqueous liquid electrolyte. Both the anode and the cathode materials are preferably of nano-sized particles.
    Type: Application
    Filed: July 17, 2006
    Publication date: January 17, 2008
    Inventor: Joseph B. Kejha
  • Patent number: 7141332
    Abstract: The present invention pertains to lightweight, hard and leakproof prismatic packaging structures for electrochemical devices and economical method of assembly and hermetic sealing of said structures by plastic layers attached to their metal walls. Metal welding is avoided and superior protection of lithium polymer cells and other cells is thus provided at lesser cost.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: November 28, 2006
    Inventors: Joseph B. Kejha, David Chua, Hsiu-Ping Lin
  • Patent number: 7036616
    Abstract: An electric vehicle which carries at least two passengers, which has at least three wheels, said passengers sitting in tandem and most of the batteries or fuel cell systems are located on the sides of the passengers. The vehicle has an aerodynamically shaped body with substantially reduced frontal area and drag. The body is lightweight, made from shock absorbing materials and structures, and has pressure-airless tires, which enhances the safety of the passengers. The vehicle also includes an advanced hydrogen-electric hybrid propulsion system with quick refueling from existing infrastructure and various additional optional features and systems.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: May 2, 2006
    Assignee: Electrion, Inc.
    Inventor: Joseph B. Kejha
  • Publication number: 20040018425
    Abstract: The present invention pertains to lightweight, hard and leakproof prismatic packaging structures for electrochemical devices and economical method of assembly and hermetic sealing of said structures by plastic layers attached to their metal walls. Metal welding is avoided and superior protection of lithium polymer cells and other cells is thus provided at lesser cost.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Inventors: Joseph B. Kejha, David Chua, Hsiu-Ping Lin
  • Publication number: 20030027051
    Abstract: An economical manufacturing method and structure of electrodes for lithium based electrochemical devices, such as batteries and capacitors, which method results in the electrodes having various metal foil or grid current collectors embedded in the middle of their thickness by continuous dipping of said collectors in an electrode slurry, which is then solidified. The electrodes have superior performance and low resistance, due to short electron's travel to the collector, excellent adhesion of the electrode material to the grid, and uniform thickness at unlimited width. The method also includes additional steps and treatments to produce high quality electrodes.
    Type: Application
    Filed: July 23, 2001
    Publication date: February 6, 2003
    Inventors: Joseph B. Kejha, David Chua, Hsiu-Ping Lin
  • Publication number: 20030014859
    Abstract: The present invention pertains to hybrid lithium-ion based electrochemical devices having a thin microporous polymeric separator bonded to their porous electrodes without special treatment of the separator and without additional adhesive layers. Structures of superior high energy density and power density are disclosed herein, as well as the methods of their assembly and automated production.
    Type: Application
    Filed: April 9, 2002
    Publication date: January 23, 2003
    Inventors: Joseph B. Kejha, David Chua, Hsiu-Ping Lin
  • Patent number: 6468697
    Abstract: Composite polymer electrolytes for use in alkali-metal based electrochemical devices, which electrolytes contain chopped electrically non-conductive fibers in an electrolyte slurry which has been cured on a release tape and then pressed onto an electrode, or which slurry is coated directly onto said electrode, and then cured.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: October 22, 2002
    Assignee: Lithium Technology Corporation
    Inventors: George R. Ferment, Joseph B. Kejha
  • Patent number: 6326105
    Abstract: Polymer electrolyte composites for alkali metal electrochemical devices which are formed by coating an inert, lightweight, electrically insulating, non-woven glass fiber net which includes a polyvinyl alcohol binder, with a liquid polymer which may be ionically conductive, and curing the polymer to form a solid or semi-solid state electrolyte composite.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: December 4, 2001
    Assignee: Lithium Technology Corporation
    Inventors: Joseph B. Kejha, Santha Kolla, Jay Forlino