Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11965345 | Concrete screeding machine for tilt-up panels | James E. Kangas, Matthew A. Kangas, Mark A. Pietila | 2024-04-23 |
| 11066790 | Concrete screeding system with floating screed head | Mark A. Pietila, James E. Kangas, Philip J. Quenzi | 2021-07-20 |
| 10494776 | Concrete screeding system with rotatable base and articulating boom | Mark A. Pietila, James E. Kangas, Philip J. Quenzi | 2019-12-03 |
| 10190268 | Concrete screeding system with boom mounted screed head | Mark A. Pietila, James E. Kangas, Philip J. Quenzi | 2019-01-29 |
| 9353490 | Roller plow assembly for concrete screeding machine | Mark A. Pietila | 2016-05-31 |
| 9234318 | Roller plow assembly for concrete screeding machine | Mark A. Pietila | 2016-01-12 |
| 8038366 | Wheeled concrete screeding device | Russ E. Stein, Mark A. Pietila, Michael R. Keranen, Carl B. Kieranen | 2011-10-18 |
| 7909533 | Apparatus for screeding uncured concrete surfaces | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Carl B. Kieranen, Howard E. Hohmann, Jr. | 2011-03-22 |
| 7854565 | Method of establishing a desired grade of an uncured concrete surface | Russ E. Stein, Mark A. Pietila, Michael R. Keranen, Carl B. Kieranen | 2010-12-21 |
| 7850396 | Wheeled screeding device | Mark A. Pietila, Jason M. Wiitanen, Jeffrey Torvinen | 2010-12-14 |
| 7491011 | Apparatus for screeding uncured concrete | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Carl B. Kieranen, Howard E. Hohmann, Jr. | 2009-02-17 |
| 7407339 | Powered strike-off plow | Russ E. Stein, Mark A. Pietila, Michael R. Keranen, Carl B. Kieranen | 2008-08-05 |
| 7320558 | Apparatus for screeding uncured concrete surfaces | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Carl B. Kieranen, Howard E. Hohmann, Jr. | 2008-01-22 |
| 7195423 | Powered strike-off plow | Russ E. Stein, Mark A. Pietila, Michael R. Keranen, Carl B. Kieranen | 2007-03-27 |
| 7121762 | Apparatus for screeding uncured concrete surfaces | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Carl B. Kieranen, Howard E. Hohmann, Jr. | 2006-10-17 |
| 6976805 | Light weight apparatus for screeding and vibrating uncured concrete surfaces | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Carl B. Kieranen | 2005-12-20 |
| 6953304 | Lightweight apparatus for screeding and vibrating uncured concrete surfaces | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Carl B. Kieranen | 2005-10-11 |
| 6695532 | Concrete finishing apparatus | David W. Somero, David M. Somero, Philip J. Quenzi, Mark A. Pietila, Carl B. Kieranen +2 more | 2004-02-24 |