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Inventor

Donald R. Engelbert

Inventor
Copan, OK, US

Overview

13→
Patents
1991–2013
Patent span
Performing operations
Primary field (CPC B)

Patents· 13 as inventor

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

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry34%
C10GCracking hydrocarbon oils24%
B01DSeparation17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
C01BNon-metallic elements3%
F27BFurnaces, kilns, ovens or retorts in general3%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace3%
G01FMeasuring volume, volume flow, mass flow or liquid level3%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
PatentTitleYear
8,521,445'Corrosion rate monitoring'20138,475,649'Magnetic removal of material from a mixture based on sulfided diluent in the mixture'20138,262,902'Magnetic removal of material from a mixture based on sulfided diluent in the mixture'20126,869,522'Desulfurization process'20056,683,024'Desulfurization and novel sorbents for same'20046,350,422'Sorbent compositions'20026,274,031'Transport desulfurization process utilizing a sulfur sorbent that is both fluidizable and circulatable and a method of making such sulfur sorbent'20016,150,300'Process to produce sorbents'20006,056,871'Transport desulfurization process utilizing a sulfur sorbent that is both fluidizable and circulatable and a method of making such sulfur sorbent'20005,958,830'Sorbent compositions'19995,914,292'Transport desulfurization process utilizing a sulfur sorbent that is both fluidizable and circulatable and a method of making such sulfur sorbent'19995,219,542'Process for removing sulfur compounds'19935,048,333'Material level checking apparatus for use in a rotating member'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2002Patents assigned to PHILLIPS PETROLEUM CO (8)· patent assignee history
1991–2013Based in Copan, OK, US· patent location history
1999Based in Bartlesville, OK, US· patent location history
2004–2013Patents assigned to CONOCOPHILLIPS CO (3)· patent assignee history
2012–2013Patents assigned to ENGELBERT DONALD R (2)· patent assignee history
2012–2013Patents assigned to PHILLIPS 66 CO (2)· patent assignee history
2012–2013Patents assigned to UPPILI SUNDARARAJAN (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PHILLIPS PETROLEUM CO81991–2002
CONOCOPHILLIPS CO32004–2013
ENGELBERT DONALD Rself22012–2013
PHILLIPS 66 CO22012–2013
UPPILI SUNDARARAJAN22012–2013
Locations
LocationPatentsSpan
Copan, OK, US121991–2013
Bartlesville, OK, US11999