Inventor

Derek Stewart

Inventor
Livermore, CA, US

Overview

9→
Patents
1995–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 9 as inventor

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

H01Lprimary
H01LSemiconductor devices17%
G11CStatic stores14%
H10BElectronic memory devices14%
H10NElectric solid-state devices not otherwise provided for14%
H10DInorganic electric semiconductor devices6%
A61KPreparations for medical, dental or toiletry purposes3%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations3%
C07KPeptides3%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
G01RMeasuring electric variables3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995Patents assigned to SCOTTISH CROP RESEARCH INST (1)· patent assignee history
1995Based in Dundee, GB· patent location history
2017Patents assigned to HGST Netherlands BV (1)· patent assignee history
2017–2020Based in Livermore, CA, US· patent location history
2019–2020Patents assigned to SANDISK TECHNOLOGIES LLC (6)· patent assignee history
2021Patents assigned to IGOR INC (1)· patent assignee history
2021Based in Johnston, IA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SANDISK TECHNOLOGIES LLC62019–2020
HGST Netherlands BV12017
IGOR INC12021
SCOTTISH CROP RESEARCH INST11995
Locations
LocationPatentsSpan
Livermore, California, US72017–2020
Johnston, IA, US12021
Dundee, GB11995