Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5330045 | Low backline pressure chain | — | 1994-07-19 |
| 5219065 | Chain link for a product capturing chain | Roger H. Schroeder | 1993-06-15 |
| D332213 | Conveyor chain link | Dennis A. Woyach, Roger H. Schroeder | 1993-01-05 |
| 5096050 | Low backline pressure chain | — | 1992-03-17 |
| 4909380 | Low backline pressure chain | — | 1990-03-20 |
| 4865183 | Wide chain conveyor sprocket drive | Roger H. Schroeder | 1989-09-12 |
| 4858751 | Wide chain conveyor assembly | — | 1989-08-22 |
| 4809846 | Chain link for a product capturing chain | Roger H. Schroeder | 1989-03-07 |
| D299425 | Chain link | Roger H. Schroeder | 1989-01-17 |
| D299424 | Chain link | Roger H. Schroeder | 1989-01-17 |
| 4765454 | Conveyor chain for use with fingered transfer plate | Roger H. Schroeder | 1988-08-23 |
| 4711605 | Key apparatus | — | 1987-12-08 |
| D289734 | Conveyor chain link | Roger H. Schroeder | 1987-05-12 |
| D289606 | Conveyor chain link | Roger H. Schroeder | 1987-05-05 |
| D289607 | Conveyor chain link | Roger H. Schroeder | 1987-05-05 |
| D289608 | Conveyor chain link | Roger H. Schroeder | 1987-05-05 |
| D289497 | Conveyor chain link | Roger H. Schroeder | 1987-04-28 |
| D289496 | Conveyor chain link | Roger H. Schroeder | 1987-04-28 |
| 4629063 | Chain link for a product capturing chain | Roger H. Schroeder | 1986-12-16 |
| D286136 | Chain link | Roger H. Schroeder | 1986-10-14 |
| D284640 | Conveyor chain link | Roger H. Schroeder, Robert J. Gladczak | 1986-07-15 |
| 4586601 | Magnetized conveyor and chain links | — | 1986-05-06 |
| D282907 | Chain link for conveyors | Roger H. Schroeder | 1986-03-11 |
| 4438838 | Conveyor chain for use with fingered transfer plate | Roger H. Schroeder | 1984-03-27 |
| 4436200 | Low friction flat-top article carrying chain | William H. Bloedorn | 1984-03-13 |