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Inventor

Mark D. Stevenson

Inventor
Anchorage, AK, US

Overview

15→
Patents
1999–2019
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 15 as inventor

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

E21Bprimary
E21BEarth or rock drilling80%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing13%
B29CShaping or joining of plastics7%
PatentTitleYear
10,471,644Blow molding apparatus20197,666,120'Exercise apparatus with three dimensional motion'20107,625,317'Exercise apparatus with coupled motion mechanism'20096,564,865'Oil and gas production with downhole separation and reinjection of gas'20036,283,204'Oil and gas production with downhole separation and reinjection of gas'20016,260,619'Oil and gas production with downhole separation and compression of gas'20016,209,641'Method and apparatus for producing fluids while injecting gas through the same wellbore'20016,189,614'Oil and gas production with downhole separation and compression of gas'20016,056,054'Method and system for separating and injecting water in a wellbore'20006,053,249'Method and apparatus for injecting gas into a subterranean formation'20006,039,116'Oil and gas production with periodic gas injection'20006,035,934'Method and system for separating and injecting gas in a wellbore'20006,032,737'Method and system for increasing oil production from an oil well producing a mixture of oil and gas'20006,026,901'Method and system for separating and injecting gas in a wellbore'20005,988,275'Method and system for separating and injecting gas and water in a wellbore'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2001Patents assigned to ATLANTIC RICHFIELD CO (11)· patent assignee history
1999–2003Based in Anchorage, AK, US· patent location history
2003Patents assigned to CONOCOPHILLIPS CO (1)· patent assignee history
2009–2010Patents assigned to BRUNSWICK CORP (2)· patent assignee history
2009–2019Based in Lombard, IL, US· patent location history
2019Patents assigned to WEILER ENG INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ATLANTIC RICHFIELD CO111999–2001
BRUNSWICK CORP22009–2010
CONOCOPHILLIPS CO12003
WEILER ENG INC12019
Locations
LocationPatentsSpan
Anchorage, AK, US121999–2003
Lombard, Illinois, US32009–2019