Inventor

John Pearson

Inventor

Cambridge, GB

Overview

1988–2014

Patent span

Physics

Primary field (CPC G)

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

G06Fprimary

G06FElectric digital data processing25%

Y10TTechnical subjects covered by former us classification25%

B01DSeparation13%

C09KMaterials for miscellaneous applications, not provided for elsewhere13%

E21BEarth or rock drilling13%

H05KPrinted circuits13%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1988Based in El Monte, CA, US· patent location history

2012–2013Patents assigned to PEARSON JOHN RICHARD ANTHONY (2)· patent assignee history

2012–2013Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (2)· patent assignee history

2012Patents assigned to CRAWSHAW JOHN PETER (1)· patent assignee history

2012–2013Based in Cambridge, GB· patent location history

2013Patents assigned to CRASTER BEMADETTE (1)· patent assignee history

2014Patents assigned to PEARSON JOHN (2)· patent assignee history

2014Based in Fellside Meadows, GB· patent location history

2014Based in Lawrenceville, NJ, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PEARSON JOHNself	2	2014
PEARSON JOHN RICHARD ANTHONYself	2	2012–2013
SCHLUMBERGER TECHNOLOGY CORP	2	2012–2013
CRASTER BEMADETTE	1	2013
CRAWSHAW JOHN PETER	1	2012

Locations