Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8038365 | Apparatus and method for improving the control of a concrete screed head assembly | Philip J. Quenzi, Frank Edward Anderson, Jeffrey Torvinen, Mark A. Pietela | 2011-10-18 |
| 8038366 | Wheeled concrete screeding device | Philip D. Halonen, Russ E. Stein, Mark A. Pietila, Michael R. Keranen | 2011-10-18 |
| 7909533 | Apparatus for screeding uncured concrete surfaces | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Philip D. Halonen, Howard E. Hohmann, Jr. | 2011-03-22 |
| 7854565 | Method of establishing a desired grade of an uncured concrete surface | Philip D. Halonen, Russ E. Stein, Mark A. Pietila, Michael R. Keranen | 2010-12-21 |
| 7677834 | Apparatus and method for improving control of a concrete screed head assembly | Philip J. Quenzi, Frank Edward Anderson, Jeffrey Torvinen, Mark A. Pietela | 2010-03-16 |
| 7491011 | Apparatus for screeding uncured concrete | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Philip D. Halonen, Howard E. Hohmann, Jr. | 2009-02-17 |
| 7448564 | Portable apparatus for crushing rock and other hard material and related method | Robert Niemela | 2008-11-11 |
| 7407339 | Powered strike-off plow | Philip D. Halonen, Russ E. Stein, Mark A. Pietila, Michael R. Keranen | 2008-08-05 |
| 7399139 | Apparatus and method for three-dimensional contouring | Charles Hallstrom, Glen Raymond Simula, Nils P. Ruonavaara, James D. Waineo | 2008-07-15 |
| 7396186 | Apparatus for improving the control of a concrete screed head assembly | Philip J. Quenzi, Frank Edward Anderson, Jeffrey Torvinen, Mark A. Pietila | 2008-07-08 |
| 7320558 | Apparatus for screeding uncured concrete surfaces | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Philip D. Halonen, Howard E. Hohmann, Jr. | 2008-01-22 |
| RE39834 | Apparatus and method for three-dimensional contouring | Charles Hallstrom, Glen Raymond Simula, Nils P. Ruonavaara, James D. Waineo | 2007-09-11 |
| 7195423 | Powered strike-off plow | Philip D. Halonen, Russ E. Stein, Mark A. Pietila, Michael R. Keranen | 2007-03-27 |
| 7175363 | Apparatus and method for improving the control of a concrete screed head assembly | Philip J. Quenzi, Frank Edward Anderson, Jeffrey Torvinen, Mark A. Pietila | 2007-02-13 |
| 7144191 | Apparatus and method for three-dimensional contouring | Charles Hallstrom, Glen Raymond Simula, Nils P. Ruonavaara, James D. Waineo | 2006-12-05 |
| 7121762 | Apparatus for screeding uncured concrete surfaces | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Philip D. Halonen, Howard E. Hohmann, Jr. | 2006-10-17 |
| 7044681 | Apparatus and method for improving the control of a concrete screed head assembly | Philip J. Quenzi, Frank Edward Anderson, Jeffrey Torvinen, Mark A. Pietila | 2006-05-16 |
| 6976805 | Light weight apparatus for screeding and vibrating uncured concrete surfaces | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Philip D. Halonen | 2005-12-20 |
| 6953304 | Lightweight apparatus for screeding and vibrating uncured concrete surfaces | Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Philip D. Halonen | 2005-10-11 |
| 6929420 | Apparatus and method for three-dimensional contouring | Charles Hallstrom, Glen Raymond Simula, Nils P. Ruonavaara, James D. Waineo | 2005-08-16 |
| 6695532 | Concrete finishing apparatus | David W. Somero, David M. Somero, Philip J. Quenzi, Philip D. Halonen, Mark A. Pietila +2 more | 2004-02-24 |
| 6623208 | Concrete placing and screeding apparatus and method | Philip J. Quenzi, Jeffrey Torvinen, Charles Hallstrom, Mark A. Pietila | 2003-09-23 |
| 6588976 | Concrete placing and screeding apparatus and method | Philip J. Quenzi, Jeffrey Torvinen, Charles Hallstrom, Mark A. Pietila | 2003-07-08 |
| 6227761 | Apparatus and method for three-dimensional contouring | Charles Hallstrom, Glen Raymond Simula, Nils P. Ruonavaara, James D. Waineo | 2001-05-08 |