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Inventor

Randy Carl John

Inventor
Houston, TX, US

Overview

4→
Patents
1992–2013
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C10Gprimary
C10GCracking hydrocarbon oils15%
C21DModifying the physical structure of ferrous metals15%
E21BEarth or rock drilling15%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form10%
C22CAlloys10%
G05FSystems for regulating electric or magnetic variables10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
B60LPropulsion of electrically-propelled vehicles5%
C23CCoating metallic material5%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%
PatentTitleYear
8,606,091'Subsurface heaters with low sulfidation rates'20138,192,682'High strength alloys'20127,785,427'High strength alloys'20105,169,515'Process and article'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2013Patents assigned to SHELL OIL CO (4)· patent assignee history
1992–2013Based in Houston, TX, US· patent location history
2012–2013Patents assigned to JOHN RANDY CARL (2)· patent assignee history
2012–2013Patents assigned to VINEGAR HAROLD J (2)· patent assignee history
2012Patents assigned to KIM DONG SUB (1)· patent assignee history
2012Patents assigned to MAZIASZ PHILLIP JAMES (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHELL OIL CO41992–2013
JOHN RANDY CARLself22012–2013
VINEGAR HAROLD J22012–2013
KIM DONG SUB12012
MAZIASZ PHILLIP JAMES12012
Locations
LocationPatentsSpan
Houston, Texas, US41992–2013