Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4731254 | Method of, and apparatus for, repairing mechanical and/or chemical damage to the surface of bottles destined for re-use | Alfred H. Heineken, Reinhard Baumert, Ulrich Hoffmann, Ulrigh Roth, Wolfgang Schwammlein | 1988-03-15 |
| 4304604 | Production, composition and aftertreatment of mineral fibers for the micro-reinforcement of binders of building materials | Georg M. Daerr, Karl-Heinz Gruenthaler | 1981-12-08 |