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Inventor

Wilbur J. Hampel

Inventor
Spring Park, MN, US

Overview

6→
Patents
1977–1987
Patent span
Human necessities
Primary field (CPC A)

Patents· 6 as inventor

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

A01Gprimary
A01GHorticulture20%
A01DHarvesting10%
A47LDomestic washing or cleaning10%
E01HStreet cleaning10%
F16DCouplings for transmitting rotation10%
H02JElectric power networks10%
H05KPrinted circuits10%
LOCD010%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
4,694,528'Convertible vacuum-blower'19874,397,088'Power equipment unit with split handle'19834,376,630'Drive coupling'1983D0264173'Powered implement handle'19824,233,553'Automatic dual mode battery charger'19804,039,900'Plug in regulating power supply'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1980Patents assigned to AULT INC (2)· patent assignee history
1977Based in Wayzata, MN, US· patent location history
1980–1987Based in Spring Park, MN, US· patent location history
1982Patents assigned to THE TORO CO (1)· patent assignee history
1983–1987Patents assigned to TORO CO (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TORO CO31983–1987
AULT INC21977–1980
THE TORO CO11982
Locations
LocationPatentsSpan
Spring Park, Minnesota, US51980–1987
Wayzata, Minnesota, US11977