Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9016668 | Stackable barrier with connector | David J. Lipniarski, Joseph C. Mecham | 2015-04-28 |
| 8939675 | Barrier systems with interlocking flag | James H. Schaffner | 2015-01-27 |
| 8808600 | Methods for manufacturing barrier systems having a retained coupling pin | James H. Schaffner | 2014-08-19 |
| D702581 | Stand barricade | Dennis Kovach | 2014-04-15 |
| 8453995 | Control barrier | David J. Lipniarski | 2013-06-04 |
| 8167512 | Low profile barriers having attached molded pins | — | 2012-05-01 |
| 7922420 | Barriers with kiss-offs | Greg H. Brown, David E. Cowan, Bryan D. Grabowski, Charles M. Mettler, Bruce E. Owens +1 more | 2011-04-12 |
| 7789585 | Control barrier with rotatable legs | David J. Lipniarski | 2010-09-07 |
| D614984 | Barricade | David C. Winter, Edward G. Van Nimwegen, Jay D. Spendlove | 2010-05-04 |
| 7588387 | Barriers with interlocking sides | Greg H. Brown, David E. Cowan, Bryan D. Grabowski, Charles M. Mettler, Bruce E. Owens +1 more | 2009-09-15 |
| D599488 | Control barrier with rotatable legs | David J. Lipniarski | 2009-09-01 |
| 7540682 | Control barrier with rotatable legs | David J. Lipniarski | 2009-06-02 |
| D569992 | Traffic barrier | David J. Lipniarski | 2008-05-27 |
| D555804 | Low profile barrier | — | 2007-11-20 |
| 7275888 | Interlocking barriers | Eric M. Simon, William Snook | 2007-10-02 |
| D552250 | Interlocking barrier | Eric M. Simon, William Snook | 2007-10-02 |
| D546969 | Low profile barrier | — | 2007-07-17 |
| D533281 | Barrier with interlocking sides | Greg H. Brown, David E. Cowan, Bryan D. Grabowski, Charles M. Mettler, Bruce E. Owens +1 more | 2006-12-05 |
| 6676113 | Control barrier with rotatable legs | Eric M. Simon | 2004-01-13 |
| 6086285 | Interlocking control barrier systems | — | 2000-07-11 |
| 5993103 | Control barrier with support legs | — | 1999-11-30 |
| 5836714 | Control barrier systems | — | 1998-11-17 |
| 5611641 | Crowd control barrier system | — | 1997-03-18 |
| 5452963 | Crowd control barrier | — | 1995-09-26 |