Inventor
Walter E. Lisowski
Inventor
Chicago, IL, US
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B63Bprimary
B63BShips or other waterborne vessels14%
LOC0814%
A63CSkates10%
B60BVehicle wheels10%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges10%
LOC1510%
B08BCleaning in general5%
B25GHandles for hand implements5%
G01KMeasuring temperature5%
G05DSystems for controlling or regulating non-electric variables5%
PatentTitleYear
D0596020'Roller shade bracket'2009D0596019'Roller shade bracket'2009D0596018'Roller shade bracket'20097,353,881'Ganged fire extinguisher system'2008D0455766'Collet head'2002D0455162'Collet head'2002D0437679'Adjustable walker cane'20015,937,473'Intake clearing tool for jet-powered aquatic vehicles'19995,594,974'Releasable caster'1997D0356881'Insert for a holder for boat winch handle'1995D0356882'Holder for boat winch handle'19955,347,681'Releasable fifth wheel caster for skateboards'19945,026,016'Retainer clip'19914,799,444'Rail clamp'1989D0289162'Video camera shoulder rest'19874,338,875'Boats hardware system'19824,194,459'Boats hardware system'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1991Patents assigned to HELM PRODUCTS INC (3)· patent assignee history
1980–1982Based in Addison, IL, US· patent location history
1982–2009Patents assigned to LISOWSKI WALTER E (7)· patent assignee history
1987Based in Westmont, IL, US· patent location history
1989–2009Based in Chicago, IL, US· patent location history
1994–1997Patents assigned to WATTRON JAMES P (2)· patent assignee history
2002Patents assigned to MID WEST SCREW PRODUCTS INC (2)· patent assignee history
2008Patents assigned to AKINS LARRY W (1)· patent assignee history
2008Based in Downers Grove, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LISOWSKI WALTER Eself | 7 | 1982–2009 |
| HELM PRODUCTS INC | 3 | 1980–1991 |
| MID WEST SCREW PRODUCTS INC | 2 | 2002 |
| WATTRON JAMES P | 2 | 1994–1997 |
| AKINS LARRY W | 1 | 2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chicago, Illinois, US | 13 | 1989–2009 |
| Addison, Illinois, US | 2 | 1980–1982 |
| Downers Grove, Illinois, US | 1 | 2008 |
| Westmont, Illinois, US | 1 | 1987 |