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Inventor

Martin G. Duke

Inventor
Southampton, GB

Overview

11→
Patents
1987–2018
Patent span
Human necessities
Primary field (CPC A)

Patents· 11 as inventor

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

A24Dprimary
A24DCigars100%
PatentTitleYear
9,961,936Multi-filter for a smoking product20189,259,031'Filter for a smoking article'20168,752,556'Smoking article filter'20145,657,772'Smoking article and filter therefor'19975,415,189'Lightweight cigarette filter and cigarettes incorporating such filters'19954,911,684'Smoking article mouthpieces'19904,700,724'Smoking-articles mouthpieces-elements'19874,660,576'Smoking articles'19874,660,579'Tobacco smoke filters'19874,649,942'Smoking articles'19874,644,964'Smoking article mouthpiece elements'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2016Patents assigned to BRITISH AMERICAN TOBACCO CO (8)· patent assignee history
1987–2014Based in Southampton, GB· patent location history
1995–1997Patents assigned to ROTHMANS INTERNATIONAL LTD (2)· patent assignee history
1995–1997Based in Maldon, GB· patent location history
2014–2018Patents assigned to DUKE MARTIN GRAHAM (2)· patent assignee history
2016Patents assigned to BRANTON PETER (1)· patent assignee history
2016Based in London, GB· patent location history
2018Patents assigned to BRITISH AMERICAN TOBACCO GERMANY GMBH (1)· patent assignee history
2018Based in Eastleigh, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BRITISH AMERICAN TOBACCO CO81987–2016
DUKE MARTIN GRAHAMself22014–2018
ROTHMANS INTERNATIONAL LTD21995–1997
BRANTON PETER12016
BRITISH AMERICAN TOBACCO GERMANY GMBH12018
Locations
LocationPatentsSpan
Southampton, GB71987–2014
Maldon, GB21995–1997
Eastleigh, GB12018
London, GB12016