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Inventor

David E. Workman

Inventor
Evergreen, CO, US

Overview

31→
Patents
1976–2019
Patent span
Human necessities
Primary field (CPC A)

Patents· 31 as inventor

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

A45Cprimary
A45CPurses31%
Y10TTechnical subjects covered by former us classification17%
LOCD011%
LOC089%
A45FTravelling or camp equipment: sacks or packs carried on the body6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
A47CChairs3%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding3%
B26BHand-held cutting tools not otherwise provided for3%
E05CBolts or fastening devices for wings, specially for doors or windows3%
PatentTitleYear
10,435,928Portable door securement device2019D0823664Door security bar20187,111,376'Tool with inserted blade members'20066,464,180'Pipe attaching apparatus'20026,298,528'D-ring with grommet'20016,220,411'Expandable luggage'20016,141,841'Add-a-bag assembly for luggage'2000D0424403'Handle and handle base for luggage'20006,047,442'Releasable lock mechanism for luggage towing handle'2000D0419853'Handle and handle base for luggage'2000D0417134'Bezel for wheeled luggage towing handle'19995,494,157'Computer bag with side accessible padded compartments'19965,113,983'Frame for soft luggage case'1992D0315285'Handle'1991D0313888'Luggage case'1991D0311276'Shell for luggage case'19904,784,248'Piping for luggage and the like'1988D0286466'Luggage case'1986D0282509'Attache case'1986D0278878'Luggage steering handle'1985D0278000'Attache case'1985D0273913'Portfolio for an attache case or the like'19844,433,761'Portfolio with frame and integral article retainers'19844,280,247'Luggage case handle assembly'19814,262,685'Beauty case'1981D0258471'Hand tote bag'1981D0256632'Shoulder tote bag'1980D0256631'Shoulder tote bag'1980D0255182'Attache case'19804,066,373'Fastening device'19783,967,708'Luggage case'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1996Patents assigned to SAMSONITE CORP (20)· patent assignee history
1976–1978Based in Orange, CA, US· patent location history
1980–1992Based in Evergreen, CO, US· patent location history
1996–2001Based in Princeton, NJ, US· patent location history
1999–2001Patents assigned to TUMI INC (7)· patent assignee history
2002Patents assigned to NORTH TECHNOLOGIES LLC 3 (1)· patent assignee history
2006Patents assigned to STANLEY WORKS (1)· patent assignee history
2006Based in Dublin, OH, US· patent location history
2018–2019Patents assigned to WORKMAN DAVID (2)· patent assignee history
2018–2019Based in Carlsbad, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SAMSONITE CORP201976–1996
TUMI INC71999–2001
WORKMAN DAVIDself22018–2019
NORTH TECHNOLOGIES LLC 312002
STANLEY WORKS12006
Locations
LocationPatentsSpan
Evergreen, CO, US161980–1992
Princeton, New Jersey, US81996–2001
Carlsbad, California, US22018–2019
Orange, California, US21976–1978
Dublin, OH, US12006