Inventor

Bruce Donald Palfreyman

Inventor
Houston, TX, US

Overview

4→
Patents
2006
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 4 as inventor

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

E21Bprimary
E21BEarth or rock drilling25%
B09CReclamation of contaminated soil13%
C10GCracking hydrocarbon oils13%
G01VGeophysics13%
Y02PClimate change mitigation technologies in the production or processing of goods13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
Y10TTechnical subjects covered by former us classification13%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006Patents assigned to SHELL OIL CO (4)· patent assignee history
2006Based in Houston, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHELL OIL CO42006
Locations
LocationPatentsSpan
Houston, Texas, US42006