Assignment of Assignor's Interest

Recorded: 2018-11-14 Pages: 4

Assignor

JOHNSEN, DAVID

Executed: 2016-10-25

Assignee

MARKWEST ENERGY PARTNERS, L.P.

1515 ARAPAHOE STREET, TOWER 1, SUITE 1600, DENVER, COLORADO, 80202

Covered Property (1)

System, Method, and Apparatus for Determining Air Emissions During Pig Receiver Depressurization

Patent: 10,247,643 →

Application: 16/190,577 →

Related Assignments (1)

Other recorded transfers of the patent in this record — the chain of ownership.