Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6385934 | Weatherproofing membrane having high traction surface | Thomas J. Zickell, James Karlis | 2002-05-14 |
| 5848755 | Asphalt material recycling system and method | Thomas J. Zickell, Mat Bockh | 1998-12-15 |
| 5814369 | System and method for depositing media in a pattern on a moving sheet using a media retaining member | Mat Bockh, Thomas J. Zickell, Stephen Edward Mahoney | 1998-09-29 |
| 4976876 | Point-of-use membrane filtration system | David Marcus, Philip Mitchell, Baruch Sachs | 1990-12-11 |
| 4898667 | Point-of-use membrane filtration system | David Marcus, Philip Mitchell, Samuel B. Sachs | 1990-02-06 |