| Patent No. | Patent Title: |
| 4859114 | Directional control system for a riding-type surface working mach... |
| 4856930 | Pavement and methods for producing and resurfacing pavement |
| 4854767 | Assembly-type barricade |
| 4854769 | System for paving inclined and/or curved surfaces |
| 4850737 | Hydraulic spring vehicle barricade and hydraulic circuit therefor |
| 4848961 | Concrete screed |
| 4838728 | Kit of hand-held tools for making a patterned impression in a ... |
| 4836303 | Device for the remote adjustment of the relative orientation of t... |
| 4835806 | Transfer bridge for a dock |
| 4834576 | Expansion joint and form for concrete floors |
| 4832525 | Double-bearing shaft for a vibrating screed |
| 4828427 | Cement screed tool |
| 4828426 | Device for imprinting surface of fresh concrete |
| 4827549 | Hydraulic dock leveler |
| 4828424 | Vehicle security barrier |
| 4828425 | Pre-loaded hinges for lane barrier system |
| 4825493 | Dock-leveler lock |
| 4826349 | Underground vehicle barricade |
| 4826352 | Machine for cutting off or planing off road surfaces |
| 4822207 | Anti-terrorist vehicle crash impact energy absorbing barrier |
| 4821800 | Filtering media for controlling the flow of sand during oil well ... |
| 4822208 | Advanced dynamic impact extension module |
| 4819783 | Automated inspection system and method |
| 4818138 | Highway marker |
| 4818139 | Methods and apparatus for making an asphalt-aggregate pavement |
| 4818137 | Terrorist vehicle arresting system |
| 4818140 | Screed extender with berm-forming screed |
| 4815889 | Lane barrier system with pivot control and method |
| 4813811 | Prefabricated pavement devices |
| 4810128 | Levelling device for producing a smooth surface |
| 4807700 | Wireline downhole annulus valve |
| 4808027 | Compaction attachment for backhoe |
| 4808026 | Construction apparatus with earth trimmer |
| 4806044 | Anti-crash lane barrier with self-centering hinges |
| 4806047 | Screed frame and stiffening apparatus |
| 4806043 | Method and device for drainage of borders of all stabilized civil... |
| 4802787 | Electrical control system |
| 4800968 | Well apparatus with tubular elevator tilt and indexing apparatus ... |
| 4797025 | Device for cutting a receptacle in pavement to receive a reflecto... |
| 4793732 | Pavement slot cutter |
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