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Inventor

David C. Kumpf

Inventor
Canton, OH, US

Overview

2→
Patents
2005–2008
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

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

A47Lprimary
A47LDomestic washing or cleaning50%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests50%
PatentTitleYear
7,360,275'Dirt separation system for a vacuum cleaner'20086,875,255'Removable dirt separation system for a vacuum cleaner'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005Patents assigned to HOOVER CO (1)· patent assignee history
2005–2008Based in Canton, OH, US· patent location history
2008Patents assigned to ALLGEIER DAVID M (1)· patent assignee history
2008Patents assigned to BALZER JERRY L (1)· patent assignee history
2008Patents assigned to KUMPF DAVID C (1)· patent assignee history
2008Patents assigned to LESCO ERIK D (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ALLGEIER DAVID M12008
BALZER JERRY L12008
HOOVER CO12005
KUMPF DAVID Cself12008
LESCO ERIK D12008
Locations
LocationPatentsSpan
Canton, OH, US22005–2008