Inventor

Frank Caldwell

Inventor

Lakewood, CA, US

Overview

7→

Patents

1977–2020

Patent span

Performing operations

Primary field (CPC B)

Patents· 7 as inventor

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

B64Dprimary

B64DEquipment for fitting in or to aircraft27%

A47LDomestic washing or cleaning9%

B01FMixing, e.g. dissolving, emulsifying or dispersing9%

B60BVehicle wheels9%

B60PVehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects9%

B63BShips or other waterborne vessels9%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers9%

G09BEducational or demonstration appliances9%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers9%

PatentTitleYear

10,549,884Pallet adapter2020 6,604,258'Caster roller for cargo handling system'2003 6,425,717'Cargo restraint device'2002 5,915,652'Method and apparatus for restraining a cargo barrier net beam assembly'1999 5,306,083'Mixer guard mounting means'1994 5,273,437'Audience participation system'1993 4,018,239'Tray washer apparatus'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to HOBART CORP (1)· patent assignee history

1977–1994Based in West Carrollton, OH, US· patent location history

1993Patents assigned to JOHNSON & JOHNSON (1)· patent assignee history

1993Based in Monmouth Junction, NJ, US· patent location history

1994Patents assigned to PREMARK FEG CORP (1)· patent assignee history

1999Patents assigned to MC DONNELL DOUGLAS CORP (1)· patent assignee history

1999–2020Based in Lakewood, CA, US· patent location history

2002–2020Patents assigned to BOEING CO (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BOEING CO	3	2002–2020
HOBART CORP	1	1977
JOHNSON & JOHNSON	1	1993
MC DONNELL DOUGLAS CORP	1	1999
PREMARK FEG CORP	1	1994

Locations

Location	Patents	Span
Lakewood, California, US	4	1999–2020
West Carrollton, OH, US	2	1977–1994
Monmouth Junction, New Jersey, US	1	1993