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Inventor

Douglas E. Clark

Inventor
Durham, NH, US

Overview

13→
Patents
1994–2010
Patent span
Human necessities
Primary field (CPC A)

Patents· 13 as inventor

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

A43Bprimary
A43BCharacteristic features of footwear76%
A43CFastenings or attachments of footwear12%
A43DMachines, tools, equipment or methods for manufacturing or repairing footwear12%
PatentTitleYear
7,762,008'Extreme service footwear'20107,730,640'High performance boot'20107,681,333'Shoe footbed system with interchangeable cartridges'20107,578,076'Modular shoe'20097,461,470'Shoe footbed system and method with interchangeable cartridges'20087,441,351'Footwear for hostile environments'20087,347,012'Shoe with lacing'20087,320,189'Shoe with lacing'20087,284,344'Modular shoe'20077,010,872'Modular shoe'20066,205,683'Shock diffusing, performance-oriented shoes'20015,575,088'Shoe sole with reactive energy fluid filled toroid apparatus'19965,313,717'Reactive energy fluid filled apparatus providing cushioning, support, stability and a custom fit in a shoe'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–1996Patents assigned to CONVERSE INC (2)· patent assignee history
1994–1996Based in Amesbury, MA, US· patent location history
2001–2010Patents assigned to TIMBERLAND CO (11)· patent assignee history
2001–2010Based in Durham, NH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TIMBERLAND CO112001–2010
CONVERSE INC21994–1996
Locations
LocationPatentsSpan
Durham, NH, US112001–2010
Amesbury, Massachusetts, US21994–1996