LexDanaLexDanabeta
Inventor

Patrick R. Markwardt

Inventor
Brenham, TX, US

Overview

2→
Patents
2010–2020
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

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

E21Bprimary
E21BEarth or rock drilling67%
H01RElectrically-conductive connections33%
PatentTitleYear
10,693,251Annular wet connector20207,735,578'Perforating system with shaped charge case having a modified boss'2010

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2010Patents assigned to BAKER HUGHES INC (1)· patent assignee history
2010–2020Based in Brenham, TX, US· patent location history
2020Patents assigned to BAKER HUGHES A GE CO LLC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BAKER HUGHES A GE CO LLC12020
BAKER HUGHES INC12010
Locations
LocationPatentsSpan
Brenham, Texas, US22010–2020