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Inventor

Keith W. Parker

Inventor
Grand Rapids, MI, US

Overview

3→
Patents
1977–2001
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G07Dprimary
G07DHandling of coins or valuable papers, e.g. testing, sorting by denominations, counting, dispensing, changing or depositing50%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers25%
G07FCoin-freed or like apparatus25%
PatentTitleYear
6,298,973'Multiple coin analyzer system'20015,566,808'Low profile coin analyzer apparatus'19964,022,464'Dispensing container and closure'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to DART IND INC (1)· patent assignee history
1977Based in Warrington, GB· patent location history
1996Patents assigned to PARKER ENGINEERING & MANUFACTU (1)· patent assignee history
1996–2001Based in Grand Rapids, MI, US· patent location history
2001Patents assigned to PARKER ENGINEERING & MFG CO IN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DART IND INC11977
PARKER ENGINEERING & MANUFACTU11996
PARKER ENGINEERING & MFG CO IN12001
Locations
LocationPatentsSpan
Grand Rapids, MI, US21996–2001
Warrington, GB11977