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Inventor

David Ferreira

Inventor
Glastonbury, CT, US

Overview

10→
Patents
2008–2020
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 10 as inventor

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

H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy22%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution22%
F01LCyclically operating valves for machines or engines17%
Y10TTechnical subjects covered by former us classification13%
F02DControlling combustion engines4%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof4%
F04FPumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped4%
G01FMeasuring volume, volume flow, mass flow or liquid level4%
G05DSystems for controlling or regulating non-electric variables4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
PatentTitleYear
10,774,693Variable length piston assemblies for engine valve actuation systems202010,658,686Freeze tolerant fuel cell fuel pressure regulator202010,634,019Rocker arm control systems202010,626,763Linkage between an auxiliary motion source and a main motion load path in an internal combustion engine202010,590,810Lash adjustment in lost motion engine systems202010,038,201Fuel cell component with embedded power connector20187,914,947'Insert-molded, externally manifolded, sealed membrane based electrochemical cell stacks'20117,887,974'Insert-molded, externally manifolded, sealed membrane based electrochemical cell stacks'20117,879,507'Insert-molded, externally manifolded, one-shot sealed membrane based electrochemical cell stacks'20117,409,860'Fuel level measurement device'2008

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2008Based in Orange, CT, US· patent location history
2011Patents assigned to PROTONEX TECHNOLOGY CORP (3)· patent assignee history
2011Based in North Scituate, RI, US· patent location history
2018–2020Patents assigned to AUDI AG (2)· patent assignee history
2018–2020Patents assigned to CARNEVALE CHRISTOPHER JOHN (2)· patent assignee history
2018–2020Patents assigned to FERREIRA DAVID MELO (2)· patent assignee history
2018–2020Based in Glastonbury, CT, US· patent location history
2020Patents assigned to JACOBS VEHICLE SYSTEMS INC (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JACOBS VEHICLE SYSTEMS INC42020
PROTONEX TECHNOLOGY CORP32011
AUDI AG22018–2020
CARNEVALE CHRISTOPHER JOHN22018–2020
FERREIRA DAVID MELOself22018–2020
Locations
LocationPatentsSpan
Glastonbury, CT, US62018–2020
North Scituate, RI, US32011
Orange, CT, US12008