LexDanaLexDanabeta
Inventor

John B. Cox

Inventor
Carrollton, TX, US

Overview

2→
Patents
1989–2017
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 drilling50%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses50%
PatentTitleYear
9,765,602'Flow rings for regulating flow in autonomous inflow control device assemblies'20174,839,603'Multiple-loop microwave frequency synthesizer using two phase lockloops'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to UNISYS CORP (1)· patent assignee history
1989Based in West Bountiful, UT, US· patent location history
2017Patents assigned to HALLIBURTON ENERGY SERVICES INC (1)· patent assignee history
2017Based in Carrollton, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HALLIBURTON ENERGY SERVICES INC12017
UNISYS CORP11989
Locations
LocationPatentsSpan
Carrollton, Texas, US12017
West Bountiful, UT, US11989