CMI LIMITED CO.
101Patents
14Active
101Granted
46Portfolio score
Filing activity: Sep 27, 1973 → Feb 23, 2023 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4325580A | Roadway planing apparatus | Fixed Constructions | 103 | Expired |
| US4139318A | Method and apparatus for planing a paved roadway | Fixed Constructions | 99 | Expired |
| US3997277A | Material transfer mechanism | Fixed Constructions | 94 | Expired |
| US3970405A | Slipform paving apparatus | Fixed Constructions | 74 | Expired |
| US5588776A | Paving machine having automatic metering screed control | Fixed Constructions | 72 | Expired |
| US4290820A | Method and apparatus for collecting particulate material on a roadway | Fixed Constructions | 45 | Expired |
| US4637753A | Road planar having particle reducing means | Fixed Constructions | 44 | Expired |
| US4270801A | Steering and cutter drum positioning in a paved roadway planing machine | Performing Operations; Transporting | 38 | Expired |
| US5827360A | Method and equipment for producing foam bitumen | Fixed Constructions | 37 | Expired |
| US5881959A | Materials grinder with infeed conveyor and anvil | Performing Operations; Transporting | 36 | Expired |
| US4195946A | Method for resurfacing a paved roadway | Fixed Constructions | 35 | Expired |
| US5000615A | System for reclaiming and relaying pavement in place | Fixed Constructions | 32 | Expired |
| US5422485A | Infrared breath analyzer with calibration provisions and related method | Physics | 31 | Expired |
| US4075710A | Apparatus for producing hot mix asphalt utilizing recyclable asphalt aggregate | Fixed Constructions | 31 | Expired |
| US4335921A | Cutting head for a paved roadway resurfacing apparatus | Performing Operations; Transporting | 30 | Expired |
| US5788755A | Method and equipment for producing foam bitumen | Fixed Constructions | 30 | Expired |
| US5405212A | Paving machine with drop-then-stop dowel bar insertion | Fixed Constructions | 30 | Expired |
| US3946506A | Trimmer type road construction apparatus with pivotally connected conveyor | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4147436A | Method and apparatus for producing hot mix asphalt utilizing recyclable asphalt aggregate | Fixed Constructions | 28 | Expired |
| US4784216A | Heating and/or drying apparatus | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4140420A | Portable grade averaging apparatus | Fixed Constructions | 26 | Expired |
| US5190454A | Electronic combustion control system | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4268208A | Portable self-erecting silo apparatus | Performing Operations; Transporting | 24 | Expired |
| US4084928A | Slip form having reinforcement accommodating means | Fixed Constructions | 23 | Expired |
| USD258887S | Road planing machine | General | 23 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.