Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9833088 | Pressed paperboard servingware with improved rigidity and rim stiffness | Mark B. Littlejohn, Gerald J. Van Handel, Thomas Zelinski, Michael A. Breining | 2017-12-05 |
| 9538870 | Pressed paperboard servingware with improved rigidity and rim stiffness | Mark B. Littlejohn, Gerald J. Van Handel, Thomas Zelinski, Michael A. Breining | 2017-01-10 |
| 8734309 | Forming die assembly with enhanced stop | Mircea Sofronie | 2014-05-27 |
| 8584929 | Pressed paperboard servingware with improved rigidity and rim stiffness | Mark B. Littlejohn, Gerald J. Van Handel, Thomas W. Zelinksi, Michael A. Breining | 2013-11-19 |
| 8430660 | Pressware forming apparatus, components therefore and methods of making pressware therefrom | Mark B. Littlejohn, Thomas Zelinski, Kenneth J. Zirbel, Luke G. Stumpf | 2013-04-30 |
| 8414464 | Apparatus for making paperboard pressware with controlled blank feed | Grigory I. Grischenko, Paul England, Thomas Zelinski, Alois A. Schmidtner | 2013-04-09 |
| 8047834 | Segmented pressware die set with anti-twist guide keys | Mircea Sofronie, Mark B. Littlejohn, Kenneth J. Zirbel, Luke G. Stumpf, Gary J. Reif | 2011-11-01 |
| 7845935 | Lightweight knockout for forming die assembly | Stephen K. Milligan, Mircea Sofronie | 2010-12-07 |
| 7819790 | Apparatus for making paperboard pressware with controlled blank feed | Grigory I. Grischenko, Alois A. Schmidtner, Paul England, Thomas Zelinski | 2010-10-26 |
| 7540833 | Disposable servingware containers with flange tabs | Mark B. Littlejohn, Jay S. Lester, Mircea Sofronie, Thomas Zelinski, William R. Pucci +2 more | 2009-06-02 |
| 7337943 | Disposable servingware containers with flange tabs | Mark B. Littlejohn, Jay S. Lester, Mircea Sofronie, Thomas Zelinski, William R. Pucci +2 more | 2008-03-04 |
| 7229274 | Tooling system | Mircea Sofronie | 2007-06-12 |
| 7169346 | Rotating inertial pin blank stops for pressware die sets | Mark B. Littlejohn, Mircea Sofronie | 2007-01-30 |
| 7070729 | Pressware die set with product ejectors at outer forming surfaces | Mark B. Littlejohn, Thomas Zelinski | 2006-07-04 |
| 6932753 | Food serving paperboard container pressing apparatus employing cast-in electrical heaters | Bruce R. Smith, Mircea Sofronie, Mark B. Littlejohn, Thomas Zelinski | 2005-08-23 |
| 6908296 | Tooling system | Mircea Sofronie | 2005-06-21 |
| 6827890 | Side mounted temperature probes for pressware die sets | Mircea Sofronie, Mark B. Littlejohn | 2004-12-07 |
| 6783720 | Punch stripper ring knock-out for pressware die sets | Mark B. Littlejohn, Thomas Zelinski | 2004-08-31 |
| 6666673 | Side mounted temperature probes for pressware die sets | Mircea Sofronie, Mark B. Littlejohn | 2003-12-23 |
| 6592357 | Rotating inertial pin blank stops for pressware die sets | Mark B. Littlejohn, Mircea Sofronie | 2003-07-15 |
| 6589043 | Punch stripper ring knock-out for pressware die sets | Mark B. Littlejohn, Thomas Zelinski | 2003-07-08 |
| 6585506 | Side mounted temperature probes for pressware die sets | Mircea Sofronie, Mark B. Littlejohn | 2003-07-01 |
| 4832676 | Method and apparatus for forming paperboard containers | Patrick H. Wnek, Ronald P. Marx | 1989-05-23 |
| 4781566 | Apparatus and related method for aligning irregular blanks relative to a die half | Alfred F. Rossi, Ronald P. Marx | 1988-11-01 |
| 4588539 | Process and press with a controlled pressure system | Alfred F. Rossi, Walter Malakhow, George W. Michalec | 1986-05-13 |