Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8142915 | Foamed slurry and building panel made therefrom | David R. Blackburn, Runhai Lu, Sharon L. Tracy, Qingxia Liu, James R. Wittbold +4 more | 2012-03-27 |
| 8088218 | Foamed slurry and building panel made therefrom | David R. Blackburn, Runhai Lu, Sharon L. Tracy, Qingxia Liu, James R. Wittbold +4 more | 2012-01-03 |
| 7875114 | Foamed slurry and building panel made therefrom | James R. Wittbold, Alfred C. Li | 2011-01-25 |
| 7851057 | Acoustical panel comprising interlocking matrix of set gypsum and method for making same | Mark H. Englert, Richard B. Stevens, Steven W. Sucech, Therese A. Fults, Michael J. Porter +1 more | 2010-12-14 |
| 7765813 | Apparatus and process for cooling and de-steaming calcined stucco | Michael L. Bolind, Christopher R. Nelson, Michael J. Porter | 2010-08-03 |
| 7604198 | Rotorcraft having coaxial counter-rotating rotors which produce both vertical and horizontal thrust and method of controlled flight in all six degrees of freedom | — | 2009-10-20 |
| 7364015 | Acoustical panel comprising interlocking matrix of set gypsum and method for making same | Mark H. Englert, Richard B. Stevens, Steven W. Sucech, Therese A. Fults, Michael J. Porter +1 more | 2008-04-29 |
| 7296919 | Slurry mixer constrictor valve | Richard J. Haszel, James R. Wittbold | 2007-11-20 |
| 7007914 | Slurry mixer constrictor valve | Richard J. Haszel, James R. Wittbold | 2006-03-07 |
| 5416308 | Transaction document reader | Ernest Hood, Patrick R. Machnik, Joseph C. Selden | 1995-05-16 |
| 4605958 | Method and apparatus for detecting the channel to which an electronic receiver system is tuned | Patrick R. Machnik, Robert G. Schultz, Jerry T. Thatcher, Roscella A. Whiting | 1986-08-12 |