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Inventor

DOUGLAS HOWARD HAMELWRIGHT

Inventor
US

Overview

1→
Patents
2024
Patent span
Performing operations
Primary field (CPC B)

Patents· 1 as inventor

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

B60Lprimary
B60LPropulsion of electrically-propelled vehicles33%
B64CAeroplanes33%
B64DEquipment for fitting in or to aircraft33%
PatentTitleYear
11,873,111Fuel cell protection system2024

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2024Patents assigned to TEXTRON INNOVATIONS INC (1)· patent assignee history
2024Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TEXTRON INNOVATIONS INC12024
Locations
LocationPatentsSpan
US12024