Inventor

Don Roberts

Inventor

Duncan, OK, US

Overview

1985–2021

Patent span

Performing operations

Primary field (CPC B)

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

B60Gprimary

B60GVehicle suspension arrangements11%

B60PVehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects11%

E21BEarth or rock drilling11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

B01FMixing, e.g. dissolving, emulsifying or dispersing6%

B65BMachines, apparatus or devices for, or methods of, packaging articles or materials6%

C07CAcyclic or carbocyclic compounds6%

E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates6%

F28GCleaning of internal or external surfaces of heat-exchange or heat-transfer conduits, e.g. water tubes or boilers6%

G01VGeophysics6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1985–1989Patents assigned to HALLIBURTON CO (5)· patent assignee history

1985–1989Based in Duncan, OK, US· patent location history

1993–2020Patents assigned to ROBERTS DON (4)· patent assignee history

1993–1994Patents assigned to GERSTNER STEVE (2)· patent assignee history

1993–1994Based in Auburndale, FL, US· patent location history

2011–2012Patents assigned to BAGGIE HELPER LLC (2)· patent assignee history

2011–2012Based in Sheridan, WY, US· patent location history

2012Patents assigned to BIZZELL DANIEL (1)· patent assignee history

2020Based in Tupelo, MS, US· patent location history

2021Based in Durham, GB· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations