Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4572674 | Apparatus for mixing batches of flowable solid materials | Paul Mathis | 1986-02-25 |
| 4548507 | Mixing apparatus for the production of mixtures | Paul Mathis | 1985-10-22 |
| 4395128 | Mixing tower for concrete or the like | Paul Mathis | 1983-07-26 |
| 4354317 | Process of pourable materials | Paul Mathis | 1982-10-19 |
| 4223996 | Apparatus for mixing solid and liquid constituents of mortar or the like | Paul Mathis | 1980-09-23 |