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Inventor

Ralph E. Killen

Inventor
San Francisco, CA, US

Overview

4→
Patents
2012–2013
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 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 chemistry40%
C10GCracking hydrocarbon oils30%
B05BSpraying apparatus20%
B01FMixing, e.g. dissolving, emulsifying or dispersing10%
PatentTitleYear
8,597,595'Multiphase contact and distribution apparatus for hydroprocessing'20138,372,354'Multiphase contact and distribution apparatus for hydroprocessing'20138,211,375'Flow distribution device for downflow catalytic reactors'20128,202,498'Multiphase contact and distribution apparatus for hydroprocessing'2012

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012–2013Patents assigned to CHEVRON USA INC (4)· patent assignee history
2012–2013Patents assigned to PARIMI KRISHNIAH (4)· patent assignee history
2012–2013Patents assigned to KEMOUN ABDENOUR (3)· patent assignee history
2012–2013Patents assigned to KILLEN RALPH E (3)· patent assignee history
2012–2013Patents assigned to SONG STEVEN X (3)· patent assignee history
2012–2013Based in San Francisco, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHEVRON USA INC42012–2013
PARIMI KRISHNIAH42012–2013
KEMOUN ABDENOUR32012–2013
KILLEN RALPH Eself32012–2013
SONG STEVEN X32012–2013
Locations
LocationPatentsSpan
San Francisco, California, US42012–2013