LexDanaLexDanabeta
Inventor

David P. Wilkinson

Inventor
North Vancouver, CA

Overview

66→
Patents
1992–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 66 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y02Eprimary
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution41%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy41%
Y10TTechnical subjects covered by former us classification5%
Y02PClimate change mitigation technologies in the production or processing of goods3%
B01DSeparation1%
C01BNon-metallic elements1%
C10KPurifying or modifying the chemical composition of combustible gases containing carbon monoxide1%
G01NInvestigating or analysing materials by determining their chemical or physical properties1%
G06FElectric digital data processing1%
H01QAntennas, i.e. radio aerials1%
PatentTitleYear
11,099,680Matrix sensor with receive isolation202111,086,440Matrix sensors202110,615,412Manganese oxide composition and method for preparing manganese oxide composition202010,044,055Apparatus and method for controlling variable power conditions in a fuel cell20189,951,753Systems and methods for offshore electrical energy generation20188,988,085'Sensor for measuring the concentration of a solvent or solute in a mixed solution system'20158,632,927'Membraneless fuel cell and method of operating same'20147,235,315'Electrochemical fuel cell stack having a plurality of integrated voltage reversal protection diodes'20077,014,935'Solid polymer electrolyte fuel cell stack having specific corrosion resistant cells'20066,974,647'Fuel cell fluid distribution layer having integral sealing capability'20056,936,370'Solid polymer fuel cell with improved voltage reversal tolerance'20056,924,057'Electrochemical fuel cell with an electrode having an in-plane nonuniform structure'20056,896,792'Method and device for improved catalytic activity in the purification of fluids'20056,841,285'Impregnation of ion-exchange membranes to improve electrochemical fuel cell performance'20056,764,780'Method and apparatus for increasing the temperature of a fuel cell'20046,756,149'Electrochemical fuel cell with non-uniform fluid flow design'20046,682,839'Method and apparatus for controlling the temperature within an electrochemical fuel cell'20046,673,480'Sensor cell for an electrochemical fuel cell stack'20046,667,127'Fluid diffusion layers for fuel cells'20036,638,650'Method and apparatus for detecting transfer leaks in fuel cells and fuel cell stacks'20036,627,338'Integrated fuel cell and pressure swing adsorption system'20036,613,464'Method and apparatus for reducing reactant crossover in a liquid feed electrochemical fuel cell'20036,610,432'Impregnation of microporous electrocatalyst particles for improving performance in an electrochemical fuel cell'20036,586,128'Differential pressure fluid flow fields for fuel cells'20036,548,202'Carbon-supported catalysts for fuel cells'20036,541,145'Flow fields for supporting fluid diffusion layers in fuel cells'20036,527,943'Fuel cell concentration sensor'20036,517,962'Fuel cell anode structures for voltage reversal tolerance'20036,500,572'Method for operating fuel cells on impure fuels'20026,492,043'Method and apparatus for detecting a leak within a fuel cell'20026,475,651'Method and apparatus for detecting transfer leaks in fuel cells'20026,472,090'Method and apparatus for operating an electrochemical fuel cell with periodic reactant starvation'20026,461,751'Method and apparatus for operating a fuel cell'20026,413,664'Fuel cell separator plate with discrete fluid distribution features'20026,410,175'Fuel cell system with improved starting capability'20026,350,538'Fuel cell with fluid distribution layer having intergral sealing capability'20026,329,089'Method and apparatus for increasing the temperature of a fuel cell'20016,306,536'Method of reducing fuel cell performance degradation of an electrode comprising porous components'20016,210,820'Method for operating fuel cells on impure fuels'20016,187,467'Ionomer impregnation of electrode substrates for improved fuel cell performance'20016,153,323'Electrode treatment method for improving performance in liquid feed fuel cells'20006,096,448'Method and apparatus for operating an electrochemical fuel cell with periodic fuel starvation at the anode'20006,074,773'Impregnation of microporous electrocatalyst particles for improving performance in an electrochemical fuel cell'20006,060,190'Electrochemical fuel cell membrane electrode assembly with porous electrode substrate'20005,976,726'Electrochemical cell with fluid distribution layer having integral sealing capability'19995,874,182'Method and apparatus for reducing reactant crossover in a liquid feed electrochemical fuel cell'19995,871,860'Manufacture of electrodes'19995,863,673'Porous electrode substrate for an electrochemical fuel cell'19995,840,438'Electrochemical fuel cell with an electrode substrate having an in-plane nonuniform structure for control of reactant and product transport'19985,795,669'Electrode'19985,773,160'Electrochemical fuel cell stack with concurrent flow of coolant and oxidant streams and countercurrent flow of fuel and oxidant streams'19985,763,765'Method and apparatus for detecting and locating perforations in membranes employed in electrochemical cells'19985,702,839'Manufacture of electrodes'19975,672,439'Method and apparatus for reducing reactant crossover in an electrochemical fuel cell'19975,527,363'Method of fabricating an embossed fluid flow field plate'19965,521,018'Embossed fluid flow field plate for electrochemical fuel cells'19965,482,680'Electrochemical fuel cell assembly with integral selective oxidizer'19965,470,671'Electrochemical fuel cell employing ambient air as the oxidant and coolant'19955,441,819'Method and apparatus for removing water from electrochemical fuel cells by controlling the temperature and pressure of the reactant streams'19955,432,021'Method and apparatus for oxidizing carbon monoxide in the reactant stream of an electrochemical fuel cell'19955,366,818'Solid polymer fuel cell systems incorporating water removal at the anode'19945,300,370'Laminated fluid flow field assembly for electrochemical fuel cells'19945,260,143'Method and apparatus for removing water from electrochemical fuel cells'19935,252,410'Lightweight fuel cell membrane electrode assembly with integral reactant flow passages'19935,219,684'Electrochemical cells containing a safety electrolyte solvent'19935,130,211'Electrolyte solution sequestering agents for electrochemical cells having carbonaceous electrodes'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2020Based in North Vancouver, CA· patent location history
1993–2007Patents assigned to BALLARD POWER SYSTEMS (53)· patent assignee history
1994–2002Based in Vancouver, CA· patent location history
1996Patents assigned to DAIMLER BENZ AG (2)· patent assignee history
1997–2005Patents assigned to JOHNSON MATTHEY PLC (4)· patent assignee history
2014–2018Patents assigned to WILKINSON DAVID P (3)· patent assignee history
2014–2018Patents assigned to LAM ALFRED (2)· patent assignee history
2018Based in Ventura, CA, US· patent location history
2021Based in Austin, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BALLARD POWER SYSTEMS531993–2007
JOHNSON MATTHEY PLC41997–2005
WILKINSON DAVID Pself32014–2018
DAIMLER BENZ AG21996
LAM ALFRED22014–2018
Locations
LocationPatentsSpan
North Vancouver, CA581992–2020
Vancouver, CA51994–2002
Austin, Texas, US22021
Ventura, California, US12018