Rotec Industries, Inc.
18Patents
1Active
18Granted
33Portfolio score
Filing activity: Jul 13, 1973 → Feb 23, 2006 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4278190A | Concrete discharge hopper | Performing Operations; Transporting | 90 | Expired |
| US4624357A | Vehicle-mounted extensible conveyor | Fixed Constructions | 62 | Expired |
| US5203442A | Cantilever conveying techniques | Fixed Constructions | 36 | Expired |
| US3945484A | Single belt, multiple conveyor system | Fixed Constructions | 31 | Expired |
| US4846580A | Large scale concrete conveyance techniques | Fixed Constructions | 30 | Expired |
| US4117920A | Auger hopper | Performing Operations; Transporting | 16 | Expired |
| US4262696A | Swivel arm concrete placer | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4822210A | Concrete finishing machine | Fixed Constructions | 13 | Expired |
| USRE29110E | Boom mounted conveying means | General | 11 | Expired |
| US5762179A | Conveyor modular construction techniques | Fixed Constructions | 11 | Expired |
| US6276521A | Modular truss assembly for a conveyor system | Performing Operations; Transporting | 7 | Expired |
| US6336545B1 | Conveyor support crawler for a mobile conveyor system | Performing Operations; Transporting | 6 | Expired |
| US4531630A | Load sensor | Physics | 5 | Expired |
| US4875569A | Concrete delivery system | Fixed Constructions | 5 | Expired |
| US7353935B2 | Conveyor discharge device | Fixed Constructions | 3 | Expired |
| US5699878A | Conveyor elevating techniques | Fixed Constructions | 3 | Expired |
| US7520697B2 | System and method for elevating a support post | Fixed Constructions | 0 | Active |
| US4170291A | Articulate conveyor system for tower crane | Fixed Constructions | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.