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Inventor

Mark T. Williams

Inventor
Oxford, GB

Overview

5→
Patents
1987–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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

H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy43%
LOC0229%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution29%
PatentTitleYear
D0907859Visored helmet2021D0907860Visored helmet20215,254,415'Stacked cell array bipolar battery with thermal sprayed container and cell seal'19934,840,859'Thermal battery'19894,675,256'Thermal battery comprising iron pyrite depolarizer and ferric sulfate additive'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1989Patents assigned to MINE SAFETY APPLIANCES CO (2)· patent assignee history
1987–1989Based in Owings Mills, MD, US· patent location history
1993Patents assigned to SAFT AMERICA INC (1)· patent assignee history
1993Based in Hampstead, MD, US· patent location history
2021Patents assigned to JSP LTD (2)· patent assignee history
2021Based in Oxford, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JSP LTD22021
MINE SAFETY APPLIANCES CO21987–1989
SAFT AMERICA INC11993
Locations
LocationPatentsSpan
Oxford, GB22021
Owings Mills, Maryland, US21987–1989
Hampstead, Maryland, US11993