Inventor

Charles Roy Donaho

Inventor
Richmond, 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.

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry14%
C01GCompounds containing metals not covered by subclasses c01d or c01f14%
C10GCracking hydrocarbon oils14%
Y10TTechnical subjects covered by former us classification14%
B82YSpecific uses or applications of nanostructures7%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds7%
C08CTreatment or chemical modification of rubbers7%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients7%
C08LCompositions of macromolecular compounds7%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Based in Houston, TX, US· patent location history
2001–2013Patents assigned to SHELL OIL CO (3)· patent assignee history
2001–2013Based in Richmond, TX, US· patent location history
2013Patents assigned to DONAHO CHARLES ROY (2)· patent assignee history
2013Patents assigned to REYNOLDS MICHAEL ANTHONY (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHELL OIL CO32001–2013
DONAHO CHARLES ROYself22013
REYNOLDS MICHAEL ANTHONY22013
Locations
LocationPatentsSpan
Richmond, Texas, US32001–2013
Houston, Texas, US11992