MacDon Industries LTD.
195Patents
147Active
195Granted
56Portfolio score
Filing activity: Oct 15, 1979 → Aug 15, 2023 · 47 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6675568B2 | Multi-section header with flexible crop cutting knife | Human Necessities | 127 | Expired |
| US7472533B2 | Crop header with draper canvas and a seal with an element of the cutter bar | Human Necessities | 82 | Active |
| US5243810A | Header transport system | Emerging Cross-Sectional Technologies | 81 | Expired |
| US7197865B1 | Self contained transport for crop harvesting header | Human Necessities | 79 | Expired |
| US5157905A | Support linkage for mounting a header on a support frame | Human Necessities | 75 | Expired |
| US4956966A | Header for a combine harvesting machine | Human Necessities | 75 | Expired |
| US6351931B1 | Crop header with draper canvas | Emerging Cross-Sectional Technologies | 73 | Expired |
| US5005343A | Header for a combine harvesting machine | Human Necessities | 72 | Expired |
| US5459986A | Draper header with canvas to cutter bar seal | Emerging Cross-Sectional Technologies | 72 | Expired |
| US5992759A | Material spreader attachment for mounting on a tractor | Human Necessities | 66 | Expired |
| US7438305B2 | Agricultural tractor with movable step | Performing Operations; Transporting | 65 | Active |
| USRE35543E | Header for a combine harvesting machine | General | 61 | Expired |
| US6865871B2 | Crop feed arrangement for the header of a combine harvester | Human Necessities | 61 | Expired |
| US5791128A | Reversible hydraulic drive apparatus | Human Necessities | 61 | Expired |
| US7373769B2 | Wear shield for the cutter bar of a crop cutting machine | Human Necessities | 55 | Expired |
| US6817166B2 | Crop feed draper for a header | Human Necessities | 53 | Expired |
| US4909026A | Adjustable stub guard assembly for corp cutting apparatus | Human Necessities | 53 | Expired |
| US7347277B2 | Self contained transport for crop harvesting header | Human Necessities | 53 | Active |
| US6591598B2 | Crop harvesting header with cam controlled movement of the reel fingers | Human Necessities | 52 | Expired |
| US7159687B2 | Tractor with reversible operator position for operation and transport | Performing Operations; Transporting | 52 | Expired |
| US8245489B2 | Combine header with gauge wheels to control cut height | Human Necessities | 51 | Active |
| US7918076B2 | Device for maintaining wing balance on a multi-section header | Human Necessities | 50 | Active |
| US6029429A | Header for a crop harvesting machine with adjustment of a longitudinal shape of the cutter bar | Human Necessities | 50 | Expired |
| US4573309A | Pull-type windrower | Human Necessities | 49 | Expired |
| US6962040B2 | Sickle knife with double overlapping out of phase sickles | Human Necessities | 48 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.