LexDanaLexDanabeta
Inventor

Mark C. Glaser

Inventor
Houston, TX, US

Overview

19→
Patents
1983–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 19 as inventor

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

E21Bprimary
E21BEarth or rock drilling90%
F16DCouplings for transmitting rotation10%
PatentTitleYear
11,098,560Inflatable deflector for reentry access into a lateral wellbore202110,954,735Degradable window for multilateral junction202110,883,313Apparatus and method for drilling deviated wellbores202110,774,603Hookless hanger for a multilateral wellbore202010,619,438Dissolvable whipstock for multilateral wellbore202010,443,355Lateral deflector with feedthrough for connection to intelligent systems201910,309,179Downhole casing pulling tool201910,036,211Torque limiting device201810,006,264Whipstock assembly having anchor and eccentric packer20189,879,485'Stabilizer'20189,453,374'Torque limiting device'20169,140,095'Packer cup for sealing in multiple wellbore sizes eccentrically'20157,264,067'Method of drilling and completing multiple wellbores inside a single caisson'20076,923,274'Retrievable pre-milled window with deflector'20055,246,069'Self-aligning well apparatuses and anti-rotation device for well apparatuses'19935,113,940'Well apparatuses and anti-rotation device for well apparatuses'19925,025,858'Well apparatuses and anti-rotation device for well apparatuses'19914,508,167'Selective casing bore receptacle'19854,405,017'Positive locating expendable plug'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1985Based in Bellaire, TX, US· patent location history
1991–1992Patents assigned to WEATHERFORD US INC (2)· patent assignee history
1991–2021Based in Houston, TX, US· patent location history
2005–2015Patents assigned to WEATHERFORD LAMB (3)· patent assignee history
2016–2018Patents assigned to WEATHERFORD UK LTD (2)· patent assignee history
2018–2019Patents assigned to WEATHERFORD TECH HOLDINGS LLC (3)· patent assignee history
2019–2021Patents assigned to HALLIBURTON ENERGY SERVICES INC (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HALLIBURTON ENERGY SERVICES INC62019–2021
WEATHERFORD LAMB32005–2015
WEATHERFORD TECH HOLDINGS LLC32018–2019
WEATHERFORD UK LTD22016–2018
WEATHERFORD US INC21991–1992
Locations
LocationPatentsSpan
Houston, Texas, US171991–2021
Bellaire, Texas, US21983–1985