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Inventor

Michael B. Winfree

Inventor
Anchorage, AK, US

Overview

2→
Patents
1995–2014
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B63Bprimary
B63BShips or other waterborne vessels25%
B65BMachines, apparatus or devices for, or methods of, packaging articles or materials25%
E02BHydraulic engineering25%
E21BEarth or rock drilling25%
PatentTitleYear
8,801,333'Ice worthy jack-up drilling unit with gas agitation and leg ice shields'20145,472,057'Drilling with casing and retrievable bit-motor assembly'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995Patents assigned to ATLANTIC RICHFIELD CO (1)· patent assignee history
1995–2014Based in Anchorage, AK, US· patent location history
2014Patents assigned to BERTA DOMINIQUE P (1)· patent assignee history
2014Patents assigned to CONOCOPHILLIPS CO (1)· patent assignee history
2014Patents assigned to NOBLE PETER G (1)· patent assignee history
2014Patents assigned to SHAFER RANDALL S (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ATLANTIC RICHFIELD CO11995
BERTA DOMINIQUE P12014
CONOCOPHILLIPS CO12014
NOBLE PETER G12014
SHAFER RANDALL S12014
Locations
LocationPatentsSpan
Anchorage, AK, US21995–2014