| 4490495 |
Composition and method for tinting plastic |
— |
1984-12-25 |
| 4455964 |
Mount for handling and masking optical materials |
— |
1984-06-26 |
| 4455322 |
Method for coating items |
— |
1984-06-19 |
| 4438159 |
Coating process |
— |
1984-03-20 |
| 4345546 |
Apparatus for coating items |
— |
1982-08-24 |
| 4343779 |
Process for the condensation of phosphate solids |
Klaus Sommer, Walter Klemm, Frederich Meinhardt, Gerhard Schonmann, Wilhelm Spatz |
1982-08-10 |
| 4308147 |
Composition and treating aqueous solutions with N-carboxy alkyl amino alkane polyphosphonic acids and their alkali metal salts |
Klaus Sommer |
1981-12-29 |
| 4307038 |
N-Carboxy alkyl amino alkane polyphosphonic acids |
Klaus Sommer |
1981-12-22 |
| 4293526 |
Process and apparatus for the condensation of solids |
Klaus Sommer, Walter Klemm, Frederich Meinhardt, Gerhard Schonmann, Wilhelm Spatz |
1981-10-06 |
| 4280303 |
Plastic pellet cleaning apparatus and method for optical lense molding |
— |
1981-07-28 |
| 4235682 |
Sealing solution and process to prevent deposits forming during the sealing of anodized aluminum surfaces |
Fritz Schneeberger, Walter Zweifel |
1980-11-25 |
| 4216163 |
N-Sulfo alkane amino alkane phosphoric acids and their alkali metal salts, and a process of producing same |
Klaus Sommer |
1980-08-05 |
| 4191717 |
Casting process for plastic lenses |
— |
1980-03-04 |
| 4191804 |
Coating composition |
— |
1980-03-04 |