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Inventor

Douglas G. Schaefer

Inventor
Columbus, OH, US

Overview

6→
Patents
2000–2013
Patent span
LOC
Primary field

Patents· 6 as inventor

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

LOC15primary
LOC1543%
G07FCoin-freed or like apparatus29%
A47FSpecial furniture, fittings, or accessories for shops, storehouses, bars, restaurants or the like14%
LOC2414%
PatentTitleYear
8,469,230'Product delivery and discharge system for a vending machine'20137,152,757'Can and bottle dispenser'2006D0523600'Tank for a floor care appliance'2006D0522701'Tank for a floor care appliance'2006D0520693'Tool caddy'2006D0434507'Medication dispensing spool'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2013Based in Columbus, OH, US· patent location history
2006Patents assigned to HOOVER CO (3)· patent assignee history
2006Patents assigned to MAYTAG CORP (1)· patent assignee history
2013Patents assigned to CRANE MERCHANDISING SYS INC (1)· patent assignee history
2013Patents assigned to DEBORD JEFFREY T (1)· patent assignee history
2013Patents assigned to KOPCZEWSKI MICHAEL T (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HOOVER CO32006
CRANE MERCHANDISING SYS INC12013
DEBORD JEFFREY T12013
KOPCZEWSKI MICHAEL T12013
MAYTAG CORP12006
Locations
LocationPatentsSpan
Columbus, OH, US62000–2013