Inventor
Stephen L. Kretschmer
Inventor
Mequon, WI, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Fprimary
B01FMixing, e.g. dissolving, emulsifying or dispersing12%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material12%
B44BMachines, apparatus or tools for artistic work, e.g. for sculpturing, guilloching, carving, branding, inlaying12%
B62DMotor vehicles12%
F04DNon-positive-displacement pumps12%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges12%
Y10TTechnical subjects covered by former us classification12%
A01CPlanting6%
B22DCasting of metals6%
B60GVehicle suspension arrangements6%
PatentTitleYear
6,216,763'Cast node and method for casting nodes'20015,573,222'Method of manufacturing engine cradles'19965,487,219'Method of manufacturing engine cradles'19965,409,254'Rear suspension with aligned coil springs and twist beam axle'19954,512,665'Adjustable over-the-top agitator for a liquid manure tank'19854,416,549'Apparatus for agitating and pumping a liquid slurry'19834,402,648'Chopper pump'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1985Patents assigned to SMITH HARVESTORE PRODUCTS (3)· patent assignee history
1983–1985Based in Elk Grove Village, IL, US· patent location history
1995–1996Patents assigned to SMITH CORP A O (3)· patent assignee history
1995–2001Based in Mequon, WI, US· patent location history
2001Patents assigned to R J TOWER CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SMITH CORP A O | 3 | 1995–1996 |
| SMITH HARVESTORE PRODUCTS | 3 | 1983–1985 |
| R J TOWER CORP | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Mequon, WI, US | 4 | 1995–2001 |
| Elk Grove Village, Illinois, US | 3 | 1983–1985 |