Inventor

Jack Marshall

Inventor

Detroit, MI, US

Overview

5→

Patents

1990–2015

Patent span

Chemistry

Primary field (CPC C)

Patents· 5 as inventor

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

E21Bprimary

E21BEarth or rock drilling17%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles8%

C01BNon-metallic elements8%

C04BLime, magnesia8%

C22CAlloys8%

F02DControlling combustion engines8%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof8%

G05BControl or regulating systems in general8%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation8%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%

PatentTitleYear

9,217,397'Fuel tank pressure sensor rationality test for a PHEV'2015 8,651,202'Percussion drilling assembly having a floating feed tube'2014 7,950,475'Percussion drilling assembly having a floating feed tube'2011 7,239,957'Method and system for seamless transition between multiple feedback ranges'2007 4,953,577'Spray encapsulation of photovoltaic modules'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Based in Glenolden, PA, US· patent location history

2007–2015Based in Detroit, MI, US· patent location history

2011–2014Patents assigned to SMITH INTERNATIONAL (2)· patent assignee history

2011–2014Based in Lost Creek, WV, US· patent location history

2014Patents assigned to DEWEY CHARLES (1)· patent assignee history

2014Patents assigned to HARRINGTON KEVIN (1)· patent assignee history

2014Patents assigned to MARSHALL JACK (1)· patent assignee history

2015Patents assigned to FORD GLOBAL TECH LLC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SMITH INTERNATIONAL	2	2011–2014
DEWEY CHARLES	1	2014
FORD GLOBAL TECH LLC	1	2015
HARRINGTON KEVIN	1	2014
MARSHALL JACKself	1	2014

Locations

Location	Patents	Span
Detroit, MI, US	2	2007–2015
Lost Creek, WV, US	2	2011–2014
Glenolden, Pennsylvania, US	1	1990