| 7501103 |
Tropospheric volume elements enriched with vital elements and/or protective substances |
— |
2009-03-10 |
| 5689798 |
Method and apparatus for removing undesirable chemical substances from gases, exhaust gases, vapors, and brines |
— |
1997-11-18 |
| 5627353 |
Spheres containing active compounds, their synthesis and the method of opening the spheres |
— |
1997-05-06 |
| 5520482 |
Barrier to prevent spread of soil contamination |
Joachim Kempfert |
1996-05-28 |
| 5480524 |
Method and apparatus for removing undesirable chemical substances from gases, exhaust gases, vapors, and brines |
— |
1996-01-02 |
| 4756818 |
A method for the production of a carbon fiber precursor |
Siegfried Peter, Herbert Beneke, Wolfgang Fexer, Wolfgang Jaumann, Manfred Meinbreckse +1 more |
1988-07-12 |
| 4595575 |
Process for the continuous purification of waste gases with activated carbon |
Joachim Kempfert |
1986-06-17 |