Inventor

Robert P. Whitney

Inventor

Grand Haven, MI, US

Overview

4→

Patents

1976–1991

Patent span

Human necessities

Primary field (CPC A)

Patents· 4 as inventor

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

A47Lprimary

A47LDomestic washing or cleaning33%

Y10TTechnical subjects covered by former us classification33%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers17%

B67DDispensing, delivering or transferring liquids, not otherwise provided for17%

PatentTitleYear

5,033,519'Storage tank flow control valve'1991 5,010,915'Two stage automatic shut off valve'1991 4,195,969'Vacuum cleaner'1980 3,939,518'Floor treatment machine'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1980Patents assigned to CLARKE GRAVELY CORP (2)· patent assignee history

1976–1991Based in Grand Haven, MI, US· patent location history

1991Patents assigned to EBW INC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CLARKE GRAVELY CORP	2	1976–1980
EBW INC	2	1991

Locations

Location	Patents	Span
Grand Haven, MI, US	4	1976–1991