1
A A Gregoli, Uriel M Oko, Frederic Leder: Process for converting heavy crudes, tars, and bitumens to lighter products in the presence of brine at supercritical conditions. Cities Service Oil and Gas Corporation, John Wade Carpenter, April 4, 1989: US04818370 (269 worldwide citation)

A majority amount of a heavy hydrocarbon crude is reacted with a minor amount of brine, at supercritical temperature and pressure for the brine, for a predetermined period of time in order to upgrade and convert the heavy hydrocarbon crude into a lighter hydrocarbon crude of higher API gravity. The ...


2
Uriel M Oko, James H Kralick: Fuel cell system having humidification membranes. Plug Power, Fish & Richardson P C, September 4, 2001: US06284399 (51 worldwide citation)

The invention relates to a fuel cell system having membranes that are used to humidify reactant gases. The membranes effectively prevent contamination of the reactant gases during humidification. The membranes can be used to purify the reactant gases during humidification.


3
Uriel M Oko, Robert M Baldwin: Beneficiation of shale kerogen and its conversion into shale oil. Cities Service Oil & Gas, John Wade Carpenter, March 18, 1986: US04576708 (23 worldwide citation)

A process for the production and the conversion of shale kerogen to produce shale oil. The process includes grinding crushed shale into a first product and treating the first product with a first collector. The treated first product is introduced into a first flotation zone in order to recover liber ...


4
Uriel M Oko, Wieslaw J Zielinski: Regulating a flow through a fuel cell. Plug Power, Trop Pruner & Hu P C, April 17, 2001: US06218038 (17 worldwide citation)

An assembly includes fuel cell plates and a valve. The fuel cell plates are arranged to form a fuel cell, and the plates establish a manifold passageway to communicate a fluid for the fuel cell. At least one of the plates includes flow channels to communicate the fluid through the fuel cell. The val ...


5
Gregory Muchnic, Uriel M Oko, Christopher S Dannehy: Fuel cell stack rejuvenation. Plug Power, Trop Pruner & Hu P C, May 6, 2003: US06558824 (7 worldwide citation)

A technique includes applying a vacuum to a manifold of a fuel cell stack to remove accumulated water from the stack. As an example, a fuel cell system may include a fuel cell stack that is capable of accumulating water. A vacuum system of the fuel cell system applies a vacuum to the fuel cell stack ...


6
Uriel M Oko, Nicholas Childs: Methods and kits for decontaminating fuel cells. Plug Power, Fish & Richardson P C, March 19, 2002: US06358639 (6 worldwide citation)

Methods and kits for removing contaminants from fuel cells are disclosed. The methods include passing a removal substance through a flow channel in the cell, where the substance is selected to remove the contaminant. The contaminants can be, e.g., metallic ions or organic compounds, and the removal ...


7
Arthur F Gulbrandsen, Uriel M Oko: Apparatus for converting coal. Cities Service Company, George L Rushton, October 25, 1983: US04411871 (2 worldwide citation)

An apparatus, for the rapid heating and subsequent reaction of carbonaceous material and hydrogen, comprising a cylindrical reactor shell; a first inlet conduit, coaxial with the shell, terminating inside the shell and having the terminal discharge end covered with a metal that resists carbide forma ...


8
Uriel M Oko, Nicholas Childs: Methods and kits for decontaminating fuel cells. Plug Power a New York corporation, Eric L Prahl, Fish & Richardson, December 6, 2001: US20010049033-A1 (1 worldwide citation)

Methods and kits for removing contaminants from fuel cells are disclosed. The methods include passing a removal substance through a flow channel in the cell, where the substance is selected to remove the contaminant. The contaminants can be, e.g., metallic ions or organic compounds, and the removal ...



Click the thumbnails below to visualize the patent trend.