Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8574481 | Process and apparatus for molding a shingle, for cooling a shingle, for applying a curvature thereto and carrier plate for facilitating the process | Thomas Kevin MacKinnon, David Nelson, William Arno Koegler | 2013-11-05 |
| 8337188 | Apparatus for making a shingle, and shingle made thereby | Thomas Kevin MacKinnon, Robert E. Dodd, Joong Youn Kim | 2012-12-25 |
| 8038157 | Skate strip-blade holder | David Nelson | 2011-10-18 |
| 8017052 | Process of and apparatus for making a shingle, and shingle made thereby | Thomas Kevin MacKinnon, Robert E. Dodd, Joong Youn Kim | 2011-09-13 |
| 7934346 | Process of treating a synthetic shingle and shingle made thereby | Thomas Kevin MacKinnon, John K. Donaldson | 2011-05-03 |
| 7785510 | Process of and apparatus for making a shingle, and shingle made thereby | Thomas Kevin MacKinnon, Robert E. Dodd, Joong Youn Kim | 2010-08-31 |
| 7758053 | Skate strip-blade holder | David Nelson | 2010-07-20 |
| 6991693 | Screen cloth insertion apparatus and method | John A. Walker, David Nelson, Saj Ravindran | 2006-01-31 |
| 6681833 | Screen frame having corners under compression | — | 2004-01-27 |
| 6331223 | Method of fabricating adhesively secured frame assembly | John Szabo, Saj Ravindran | 2001-12-18 |
| 6279644 | Screen and frame assembly in which the screen is adhesively secured to the frame | — | 2001-08-28 |
| D441875 | Muntin bar assembly clip | — | 2001-05-08 |
| D439496 | Tab and latch combination for securing window screens to a window frame | Wayne Jeffrey Stevens, Samuel Hung | 2001-03-27 |
| 5630306 | Insulating spacer for creating a thermally insulating bridge | — | 1997-05-20 |