Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128075 | Ceramic welding repair process | Pierre Robyn | 1992-07-07 |
| 4920084 | Forming refractory masses and composition of matter for use in forming such refractory masses | Pierre Robyn, Leon-Philippe Mottet | 1990-04-24 |
| 4792468 | Method of forming refractory masses from compositions of matter of specified granulometry | Pierre Robyn, L/e/ on-Philippe Mottet | 1988-12-20 |
| 4560591 | Apparatus for and method of spraying for forming refractories | Robert Plumat, Pierre Robyn | 1985-12-24 |
| 4542888 | Adding to silica refractory structures | Pierre Robyn | 1985-09-24 |
| 4497473 | Composite refractory articles and method of manufacturing them | Pierre Robyn | 1985-02-05 |
| 4489022 | Forming coherent refractory masses | Pierre Robyn | 1984-12-18 |