Inventor
Sheldon Joseph Grywacheski
Inventor
Eldridge, IA, US
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Dprimary
A01DHarvesting35%
A01FProcessing of harvested produce26%
A01CPlanting13%
Y10TTechnical subjects covered by former us classification9%
A01BSoil working in agriculture or forestry4%
B60GVehicle suspension arrangements4%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors4%
F16GBelts, cables, or ropes, predominantly used for driving purposes4%
PatentTitleYear
10,842,069Manure spreader improvements202010,538,134Walking beam axle assembly for an agricultural implement202010,470,354Manure spreader improvements20197,726,111'Suspension system for a belt pickup header in an agricultural harvester'20107,690,500'Hybrid draper belt splice'20107,661,256'Hybrid seam for a draper belt in an agricultural harvester'20107,640,720'Draper belt construction to control translation'20107,520,115'Header float arm load compensation'20097,478,522'Reciprocating knife cutter system'20097,462,101'Frusto-conical drum infeed and threshing region for a combine rotor'20087,344,020'Belt connection for agriculture conveyor'20087,070,498'Frusto-conical drum infeed and threshing region for a combine rotor'20066,921,330'Front chaffer and cleaning fan'20056,773,343'Front chaffer and cleaning fan'20046,251,009'Straw chopper housing'20016,238,286'Crop residue spreader'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2010Patents assigned to DEERE & CO (13)· patent assignee history
2001–2009Based in Eldridge, IA, US· patent location history
2010–2020Based in Humboldt, CA· patent location history
2010Based in Dilworth, MN, US· patent location history
2019–2020Patents assigned to DUTCH BLACKSMITH SHOP LTD (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DEERE & CO | 13 | 2001–2010 |
| DUTCH BLACKSMITH SHOP LTD | 3 | 2019–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Eldridge, IA, US | 9 | 2001–2009 |
| Humboldt, CA | 6 | 2010–2020 |
| Dilworth, Minnesota, US | 1 | 2010 |