Issued Patents All Time
Showing 25 most recent of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11619010 | Roller tube concrete paver with retractable vibrator assembly | Timmy D. Guinn | 2023-04-04 |
| 8360680 | Hydraulic riding trowels with automatic load sensing | Timmy D. Guinn, Edward Andrew Waldon, Scott R. Sugg | 2013-01-29 |
| 7690864 | Hydraulic riding trowel with automatic load sensing system | Timmy D. Guinn, Mike Woodside, Michael W. McKean, Jack C. Wilson | 2010-04-06 |
| 7316523 | Acoustically matched method and apparatus for screeding concrete | Richard P. Bishop | 2008-01-08 |
| 7114876 | Acoustically matched concrete finishing pans | Richard P. Bishop | 2006-10-03 |
| 7108449 | Method and apparatus for acoustically matched slip form concrete application | Richard P. Bishop | 2006-09-19 |
| 6857815 | Acoustic impedance matched concrete finishing | Richard P. Bishop | 2005-02-22 |
| 6582153 | Edge guarded power riding trowel | Timmy D. Guinn | 2003-06-24 |
| D474203 | Riding trowel with rotatable ring edge guard | Timmy D. Guinn | 2003-05-06 |
| D466909 | Riding trowel having edge guards with safety covers | Timmy D. Guinn | 2002-12-10 |
| 6106193 | Hydraulically driven, multiple rotor riding trowel | Michael W. McKean, Timmy D. Guinn, Hugh L. Adams | 2000-08-22 |
| 6089786 | Dual rotor riding trowel with proportional electro-hydraulic steering | Michael W. McKean, Timmy D. Guinn | 2000-07-18 |
| 6089787 | Transformable two-person floating screed with automatic grade control | Timmy D. Guinn | 2000-07-18 |
| 6053660 | Hydraulically controlled twin rotor riding trowel | Michael W. McKean | 2000-04-25 |
| 6048130 | Hydraulically driven, multiple rotor riding trowel | Michael W. McKean, Timmy D. Guinn, Hugh L. Adams | 2000-04-11 |
| 6019545 | Surface finishing machine with rotatable guard | Timmy D. Guinn | 2000-02-01 |
| 6019433 | Concrete saw with stabilized carriage and blade control | — | 2000-02-01 |
| 5988939 | Universal bridge deck vibrating system | Michael W. McKean | 1999-11-23 |
| 5988938 | Compartmentalized access shroud system for riding trowels | — | 1999-11-23 |
| D416564 | Rotatable guard for a finishing machine | Timmy D. Guinn | 1999-11-16 |
| 5967696 | Riding trowel with variable ratio transmission | Timmy D. Guinn | 1999-10-19 |
| D413127 | Guard for walk behind trowel | — | 1999-08-24 |
| 5934823 | Quick access shroud system for riding trowels | — | 1999-08-10 |
| D410931 | Ventilated quick access support hood for riding trowels | — | 1999-06-15 |
| 5890833 | Hydraulically controlled riding trowel | Michael W. McKean | 1999-04-06 |