Wilkinson; David P.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Wilkinson; David P..The latest application filed is for "electrolytic manganese dioxide and a method of preparing thereof".

Company Profile

3.52.33

Wilkinson; David P. - North Vancouver CA
Wilkinson; David P. - Ventura CA
Wilkinson; David P - North Vancouver CA
Wilkinson; David P. - Vancouver CA
Wilkinson; David P - Vancouver CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Manganese oxide composition and method for preparing manganese oxide composition Grant 11,456,455 - Wilkinson , et al. September 27, 2	2022-09-27
Electrolytic Manganese Dioxide And A Method Of Preparing Thereof App 20200362468 - BONAKDARPOUR; Arman ; et al.	2020-11-19
Manganese Oxide Composition And Method For Preparing Manganese Oxide Composition App 20200194789 - Wilkinson; David P. ; et al.	2020-06-18
Manganese oxide composition and method for preparing manganese oxide composition Grant 10,615,412 - Wilkinson , et al.	2020-04-07
Manganese Oxide Composition And Method For Preparing Manganese Oxide Composition App 20190237762 - Wilkinson; David P. ; et al.	2019-08-01
Apparatus and method for controlling variable power conditions in a fuel cell Grant 10,044,055 - Wilkinson , et al. August 7, 2	2018-08-07
Systems and methods for offshore electrical energy generation Grant 9,951,753 - Sinclair , et al. April 24, 2	2018-04-24
Sensor for measuring the concentration of a solvent or solute in a mixed solution system Grant 8,988,085 - Shen , et al. March 24, 2	2015-03-24
Membraneless fuel cell and method of operating same Grant 8,632,927 - Wilkinson , et al. January 21, 2	2014-01-21
Sensor for Measuring the Concentration of a Solvent or Solute in a Mixed Solution System App 20110291676 - Shen; Jun ; et al.	2011-12-01
Apparatus And Method For Controlling Variable Power Conditions In A Fuel Cell App 20110269039 - Wilkinson; David P. ; et al.	2011-11-03
Membraneless Fuel Cell And Method Of Operating Same App 20100151354 - Wilkinson; David P. ; et al.	2010-06-17
Fuel Cell Anode Structures For Voltage Reversal Tolerance App 20090214765 - Gascoyne; John M. ; et al.	2009-08-27
Supported Catalysts For The Anode Of A Voltage Reversal Tolerant Fuel Cell App 20090053575 - Knights; Shanna D. ; et al.	2009-02-26
Flow Control Apparatus and Method for Fuel Cell Flow Fields App 20080248365 - Wilkinson; David P. ; et al.	2008-10-09
Electrochemical fuel cell stack having a plurality of integrated voltage reversal protection diodes Grant 7,235,315 - Knights , et al. June 26, 2	2007-06-26
Anode catalyst compositions for a voltage reversal tolerant fuel cell App 20070037042 - Ye; Siyu ; et al.	2007-02-15
Solid polymer electrolyte fuel cell stack having specific corrosion resistant cells Grant 7,014,935 - Knights , et al. March 21, 2	2006-03-21
Fuel cell fluid distribution layer having integral sealing capability Grant 6,974,647 - Wilkinson , et al. December 13, 2	2005-12-13
Solid polymer fuel cell with improved voltage reversal tolerance Grant 6,936,370 - Knights , et al. August 30, 2	2005-08-30
Electrochemical fuel cell with an electrode having an in-plane nonuniform structure Grant 6,924,057 - Wilkinson , et al. August 2, 2	2005-08-02
Electrochemical fuel cell stack having a plurality of integrated voltage reversal protection diodes App 20050129988 - Knights, Shanna D. ; et al.	2005-06-16
Method and device for improved catalytic activity in the purification of fluids Grant 6,896,792 - St-Pierre , et al. May 24, 2	2005-05-24
Impregnation of ion-exchange membranes to improve electrochemical fuel cell performance Grant 6,841,285 - Wilkinson , et al. January 11, 2	2005-01-11
Method and apparatus for increasing the temperature of a fuel cell App 20040234845 - Roberts, Joy ; et al.	2004-11-25
Solid polymer electrolyte fuel cell stack having specific corrosion resistant cells App 20040202909 - Knights, Shanna D. ; et al.	2004-10-14
Fuel cell anode structures for voltage reversal tolerance App 20040166400 - Gascoyne, John M. ; et al.	2004-08-26
Supported catalysts for the anode of a voltage reversal tolerant fuel cell App 20040157110 - Knights, Shanna D. ; et al.	2004-08-12
Method and apparatus for increasing the temperature of a fuel cell Grant 6,764,780 - Roberts , et al. July 20, 2	2004-07-20
Fluid diffusion layers for fuel cells App 20040058229 - Beattie, Paul D. ; et al.	2004-03-25
Flow fields with capillarity for solid polymer electrolyte fuel cells App 20040058218 - Atbi, Abderrahmane ; et al.	2004-03-25
Impregnation of ion-exchange membranes to improve electrochemical fuel cell performance App 20040043271 - Wilkinson, David P. ; et al.	2004-03-04
Method and apparatus for reducing reactant crossover in a liquid feed electrochemical fuel cell App 20040023091 - Wilkinson, David P. ; et al.	2004-02-05
Method and apparatus for controlling the temperature within an electrochemical fuel cell Grant 6,682,839 - Wilkinson , et al. January 27, 2	2004-01-27
Anode catalyst compositions for a voltage reversal tolerant fuel cell App 20040013935 - Ye, Siyu ; et al.	2004-01-22
Sensor cell for an electrochemical fuel cell stack Grant 6,673,480 - Wilkinson , et al. January 6, 2	2004-01-06
Fluid diffusion layers for fuel cells Grant 6,667,127 - Beattie , et al. December 23, 2	2003-12-23
Method and apparatus for detecting transfer leaks in fuel cells and fuel cell stacks Grant 6,638,650 - Bailey , et al. October 28, 2	2003-10-28
Integrated fuel cell and pressure swing adsorption system Grant 6,627,338 - St-Pierre , et al. September 30, 2	2003-09-30
Method and apparatus for reducing reactant crossover in a liquid feed electrochemical fuel cell Grant 6,613,464 - Wilkinson , et al. September 2, 2	2003-09-02
Impregnation of microporous electrocatalyst particles for improving performance in an electrochemical fuel cell Grant 6,610,432 - Wilkinson , et al. August 26, 2	2003-08-26
Differential pressure fluid flow fields for fuel cells Grant 6,586,128 - Johnson , et al. July 1, 2	2003-07-01
Electrochemical fuel cell with an electrode having an in-plane nonuniform structure App 20030082432 - Wilkinson, David P. ; et al.	2003-05-01
Carbon-supported catalysts for fuel cells Grant 6,548,202 - Campbell , et al. April 15, 2	2003-04-15
Fuel cell anode structures for voltage reversal tolerance Grant 6,517,962 - Knights , et al. February 11, 2	2003-02-11
Method and device for improved catalytic activity in the purification of fluids App 20030010629 - St-Pierre, Jean ; et al.	2003-01-16
Method and apparatus for detecting a leak within a fuel cell Grant 6,492,043 - Knights , et al. December 10, 2	2002-12-10
Fuel cell fluid distribution layer having integral sealing capability App 20020164518 - Wilkinson, David P. ; et al.	2002-11-07
Novel applications of exfoliated transition metal dichalcogenides to electrochemical fuel cells App 20020164521 - Wessel, Silvia ; et al.	2002-11-07
Method and apparatus for detecting transfer leaks in fuel cells Grant 6,475,651 - Wilkinson , et al. November 5, 2	2002-11-05
Method and apparatus for operating a fuel cell Grant 6,461,751 - Boehm , et al. October 8, 2	2002-10-08
Electrochemical fuel cell with an electrode having an in-plane nonuniform structure App 20020127452 - Wilkinson, David P. ; et al.	2002-09-12
Method of integrally sealing an electronchemical fuel cell fluid distribution layer App 20020094470 - Wilkinson, David P. ; et al.	2002-07-18
Fluid diffusion layers for fuel cells App 20020058180 - Beattie, Paul D. ; et al.	2002-05-16
Fuel cell anode structures for voltage reversal tolerance App 20020015879 - Gascoyne, John M. ; et al.	2002-02-07
Method and apparatus for controlling the temperature within an electrochemical fuel cell App 20020006534 - Wilkinson, David P. ; et al.	2002-01-17
Method and apparatus for increasing the temperature of a fuel cell Grant 6,329,089 - Roberts , et al. December 11, 2	2001-12-11
Integrated fuel cell and pressure swing adsorption system App 20010049037 - St-Pierre, Jean ; et al.	2001-12-06
Method and apparatus for increasing the temperature of a fuel cell App 20010028967 - Roberts, Joy ; et al.	2001-10-11
Method for operating fuel cells on impure fuels App 20010028966 - Knights, Shanna D. ; et al.	2001-10-11
Carbon-supported catalysts for fuel cells App 20010009733 - Campbell, Stephen A. ; et al.	2001-07-26
Electrode treatment method for improving performance in liquid feed fuel cells Grant 6,153,323 - Colbow , et al. November 28, 2	2000-11-28
Method and apparatus for operating an electrochemical fuel cell with periodic fuel starvation at the anode Grant 6,096,448 - Wilkinson , et al. August 1, 2	2000-08-01
Impregnation of microporous electrocatalyst particles for improving performance in an electrochemical fuel cell Grant 6,074,773 - Wilkinson , et al. June 13, 2	2000-06-13
Electrochemical fuel cell membrane electrode assembly with porous electrode substrate Grant 6,060,190 - Campbell , et al. May 9, 2	2000-05-09
Electrochemical cell with fluid distribution layer having integral sealing capability Grant 5,976,726 - Wilkinson , et al. November 2, 1	1999-11-02
Manufacture of electrodes Grant 5,871,860 - Frost , et al. February 16, 1	1999-02-16
Electrochemical fuel cell with an electrode substrate having an in-plane nonuniform structure for control of reactant and product transport Grant 5,840,438 - Johnson , et al. November 24, 1	1998-11-24
Electrochemical fuel cell stack with concurrent flow of coolant and oxidant streams and countercurrent flow of fuel and oxidant streams Grant 5,773,160 - Wilkinson , et al. June 30, 1	1998-06-30
Method and apparatus for detecting and locating perforations in membranes employed in electrochemical cells Grant 5,763,765 - Lamont , et al. June 9, 1	1998-06-09
Manufacture of electrodes Grant 5,702,839 - Frost , et al. December 30, 1	1997-12-30
Method and apparatus for reducing reactant crossover in an electrochemical fuel cell Grant 5,672,439 - Wilkinson , et al. September 30, 1	1997-09-30
Embossed fluid flow field plate for electrochemical fuel cells Grant 5,521,018 - Wilkinson , et al. May 28, 1	1996-05-28
Electrochemical fuel cell assembly with integral selective oxidizer Grant 5,482,680 - Wilkinson , et al. * January 9, 1	1996-01-09
Electrochemical fuel cell employing ambient air as the oxidant and coolant Grant 5,470,671 - Fletcher , et al. November 28, 1	1995-11-28
Method and apparatus for removing water from electrochemical fuel cells by controlling the temperature and pressure of the reactant streams Grant 5,441,819 - Voss , et al. August 15, 1	1995-08-15
Method and apparatus for oxidizing carbon monoxide in the reactant stream of an electrochemical fuel cell Grant 5,432,021 - Wilkinson , et al. * July 11, 1	1995-07-11
Solid polymer fuel cell systems incorporating water removal at the anode Grant 5,366,818 - Wilkinson , et al. November 22, 1	1994-11-22
Laminated fluid flow field assembly for electrochemical fuel cells Grant 5,300,370 - Washington , et al. April 5, 1	1994-04-05
Method and apparatus for removing water from electrochemical fuel cells Grant 5,260,143 - Voss , et al. November 9, 1	1993-11-09
Lightweight fuel cell membrane electrode assembly with integral reactant flow passages Grant 5,252,410 - Wilkinson , et al. October 12, 1	1993-10-12
Electrolyte solution sequestering agents for electrochemical cells having carbonaceous electrodes Grant 5,130,211 - Wilkinson , et al. July 14, 1	1992-07-14

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