Donald W. Smith
29Patents
14h-index
22Co-inventors
81Inventor score
Filing activity: Jan 9, 1974 → Jun 24, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4325580A | Roadway planing apparatus | Fixed Constructions | 103 | Expired |
| US3970405A | Slipform paving apparatus | Fixed Constructions | 74 | Expired |
| US4728276A | Underwater pelletizer | Performing Operations; Transporting | 62 | Expired |
| US4500271A | Underwater pelletizer with adjustable blade assembly | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4818139A | Methods and apparatus for making an asphalt-aggregate pavement | Fixed Constructions | 43 | Expired |
| US5015120A | Methods and apparatus for making an asphalt-aggregate pavement | Fixed Constructions | 38 | Expired |
| US4270801A | Steering and cutter drum positioning in a paved roadway planing machine | Performing Operations; Transporting | 38 | Expired |
| US4960423A | Method of enhancing the attachment of endothelial cells on a matrix and vascular prosthesis with enhanced anti-thrombogenic characteristics | Human Necessities | 37 | Expired |
| US5035534A | Apparatus for transferring an asphalt-aggregate mixture | Fixed Constructions | 35 | Expired |
| US5624688A | Self-aligning cutter hub | Performing Operations; Transporting | 30 | Expired |
| USD256466S | Road planing machine | General | 22 | Expired |
| US6672410B2 | Drilling machine having a feed cable tensioner | Fixed Constructions | 20 | Expired |
| US4453821A | Set-up recall apparatus | Physics | 20 | Expired |
| US4955754A | Shock absorbing device for a paving machine | Fixed Constructions | 14 | Expired |
| US4171147A | Flywheel for a construction machine | Emerging Cross-Sectional Technologies | 13 | Expired |
| US3990268A | Plush fabric knitting apparatus | Textiles; Paper | 12 | Expired |
| US4861191A | Road widener | Fixed Constructions | 11 | Expired |
| US4944630A | Connector and method of connection between a road making machine and the fifth wheel of a tractor | Performing Operations; Transporting | 10 | Expired |
| US5740702A | Device for spinning drill pipe in a drill rig | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5114267A | Integrated paver with windrow pick-up capability | Fixed Constructions | 9 | Expired |
| US6675915B2 | Drilling machine having a rotary head guide | Fixed Constructions | 6 | Expired |
| US5388652A | Apparatus on a drilling tower for gripping a drill casing | Fixed Constructions | 6 | Expired |
| US4120106A | Sidebank excavator with rotating vertical cutter assembly | Fixed Constructions | 5 | Expired |
| US4069690A | Knitting apparatus | Textiles; Paper | 4 | Expired |
| US6887322B2 | High pressure cylinders including backing steel with tool steel lining | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.