Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D871713 | Cluster box mail delivery unit | Ryszard K. Mikolajczyk | 2019-12-31 |
| D855929 | Cluster box mail delivery unit | Ryszard K. Mikolajczyk | 2019-08-06 |
| D821679 | Cluster box mail delivery unit | Ryszard K. Mikolajczyk | 2018-06-26 |
| D785274 | Cluster box mail delivery unit | Ryszard K. Mikolajczyk | 2017-04-25 |
| D745765 | Cluster box mail delivery unit | Ryszard K. Mikolajczyk | 2015-12-15 |
| 8973812 | Cluster box mail delivery unit having security features | Ryszard K. Mikolajczyk | 2015-03-10 |
| 8661862 | Cluster box mail delivery unit having security features | Ryszard K. Mikolajczyk | 2014-03-04 |
| 8167195 | Cluster box mail delivery unit having security features | Ryszard K. Mikolajczyk | 2012-05-01 |
| 7963436 | Cluster box mail delivery unit having security features | Ryszard K. Mikolajczyk | 2011-06-21 |
| 7857199 | Cluster box mail delivery unit having security features | Ryszard K. Mikolajczyk | 2010-12-28 |
| 7748606 | Cluster box mail delivery unit having security features | Ryszard K. Mikolajczyk | 2010-07-06 |
| 7581910 | Fastener head | David R. Nebl, Stephen Dohm, James Van Ingen | 2009-09-01 |
| D549424 | Upper and lower portions of fronts of cluster box mail delivery receptacles | Ryszard K. Mikolajczyk | 2007-08-21 |
| D547025 | Exterior portions of guard assemblies for parcel door locking systems of cluster box unit mail delivery receptacles | Ryszard K. Mikolajczyk | 2007-07-17 |
| D543335 | Portions of master door locking components of cluster box mail delivery receptacles | Ryszard K. Mikolajczyk | 2007-05-22 |
| D536155 | Portions of central connector post and locking elements associated therewith for cluster box mail delivery receptacles | Ryszard K. Mikolajczyk | 2007-01-30 |
| D499225 | Portions of post mountable mail boxes | Curtis Taylor, James Bernot, Stephen E. Mika | 2004-11-30 |