Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6142255 | Ladder, member for connecting a rail to a horizontal element of a ladder, and method | David E. Plotner, Edward E. Heald, Richard P. Sulecki, Mitchell H. Hetrich | 2000-11-07 |
| D422717 | Ladder top | James Hand, Randall Bell, John J. Dylik, Edward E. Heald | 2000-04-11 |
| D413990 | Front face of a ladder top | James Hand, Randall Bell, John J. Dylik, Edward E. Heald | 1999-09-14 |
| 5791439 | Ladder, member for connecting a rail to a horizontal element of a ladder, and method, and apparatus and method for holding a washer | David E. Plotner, Edward E. Heald, Kevin McIntire, Richard P. Sulecki, Mitchell H. Hetrich | 1998-08-11 |
| 5636706 | Ladder, member for connecting a rail to a horizontal element of a ladder, and method | David E. Plotner, Edward E. Heald, Richard P. Sulecki, Mitchell H. Hetrich | 1997-06-10 |
| 5573081 | Ladder top with bail recess | Lauren S. Sherbondy, Donald M. Werner, Robert D. Beggs, Dale R. King, Harold L. Bernard | 1996-11-12 |
| 5366051 | Hollow plastic ladder | Robert D. Beggs | 1994-11-22 |
| 5358070 | Ladder top | Harold L. Bernard, Robert D. Beggs, Donald M. Werner, Dale R. King | 1994-10-25 |
| 5259480 | Ladder top | Harold L. Bernard, Robert D. Beggs, Donald M. Werner | 1993-11-09 |
| D340773 | Ladder top | Harold L. Bernard, Robert D. Beggs, Donald M. Werner | 1993-10-26 |
| D340291 | Ladder pail shelf | Robert D. Beggs, Francis W. MacGregor, Donald M. Werner | 1993-10-12 |
| 5131495 | Hollow plastic ladder | Robert D. Beggs | 1992-07-21 |
| 5067589 | Extendable support | — | 1991-11-26 |