Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867771 | Tensioning device for bag filters | James H. Brennecke | 1989-09-19 |
| 4813985 | Tensioning device for bag filters | James H. Brennecke | 1989-03-21 |
| 4671812 | Tensioning device for bag filters | James H. Brennecke | 1987-06-09 |
| 4597783 | Tensioning device for bag filters | James H. Brennecke | 1986-07-01 |
| D283538 | Filter bag tensioning spacer | — | 1986-04-22 |
| D283537 | Filter bag tensioning spacer | — | 1986-04-22 |
| 4511409 | Process for improving both fatigue strength and toughness of high-strength Al alloys | Daniel Ferton | 1985-04-16 |
| 4472183 | Method and apparatus for tensioning bag filters | — | 1984-09-18 |
| 4396408 | Method and apparatus for tensioning bag filters | — | 1983-08-02 |
| 4364758 | Self tensioning cap for bag filters | Jack T. Clements | 1982-12-21 |