Inventor

Duncan Stewart

Inventor
Colorado Springs, CO, US

Overview

3→
Patents
1988–2017
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

A61Cprimary
A61CDentistry20%
H10DInorganic electric semiconductor devices20%
H10NElectric solid-state devices not otherwise provided for20%
LOC3020%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to COGENT LTD (1)· patent assignee history
1988Based in Berkshire, GB· patent location history
2001Patents assigned to SHEPHERD PRODUCTS CO (1)· patent assignee history
2001Based in Killearn, GB· patent location history
2017Patents assigned to GRANT DENTAL TECH CORP (1)· patent assignee history
2017Based in Colorado Springs, CO, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
COGENT LTD11988
GRANT DENTAL TECH CORP12017
SHEPHERD PRODUCTS CO12001
Locations
LocationPatentsSpan
Colorado Springs, CO, US12017
Killearn, GB12001
Berkshire, GB11988