Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10400373 | High-strength lightweight non-woven fabric made of spunbonded non-woven, method for the production thereof and use thereof | Ararad Emirze | 2019-09-03 |
| 9458558 | High-strength lightweight non-woven fabric made of spunbonded non-woven, method for the production thereof and use thereof | Ararad Emirze | 2016-10-04 |
| 5310514 | Process and spinning device for making microfilaments | Walter Bruckner | 1994-05-10 |
| 4902559 | Absorbent body of nonwoven material and a method for the production thereof | Helmut Eschwey, Lothar Hackler, Ludwig Hartmann, Michael Kauschke, Bernhard Klein +3 more | 1990-02-20 |
| 4842915 | Tufting base for carpets made of a spunbonded fabric, a method of manufacturing the base, and a tufting carpet | Ludwig Hartmann, Engelbert Loecher, Norbert Weber | 1989-06-27 |
| 4714651 | Elastic roofing and sealing materials | Ludwig Hartmann | 1987-12-22 |
| 4496508 | Method for manufacturing polypropylene spun-bonded fabrics with low draping coefficient | Ludwig Hartmann, Engelbert Locher | 1985-01-29 |
| 4434204 | Spun-bonded fabric of partially drawn polypropylene with a low draping coefficient | Ludwig Hartman, Engelbert L/o/ cher | 1984-02-28 |
| 4413032 | Non-woven fabric with wick action | Ludwig Hartmann | 1983-11-01 |
| 4305986 | Tufted carpeting | Ludwig Hartmann | 1981-12-15 |
| 4210690 | Spun nonwoven fabric of polyester filaments for use as backing material for a deep-drawable tufted carpet | Ludwig Hartmann | 1980-07-01 |