Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34901 | Optical waveguide with polymer core and polymer cladding | Peter Herbrechtsmeier, Gerhard Wieners, Manfred Tschacher, Herbert Fitz | 1995-04-11 |
| 4991932 | Optical waveguide | Peter Herbrechtsmeier, Gerhard Wieners, Herbert Fitz, Manfred Tschacher | 1991-02-12 |
| 4984870 | Optical waveguide | Peter Herbrechtsmeier, Gerhard Wieners, Manfred Tschacher, Herbert Fitz | 1991-01-15 |
| 4979799 | Optical waveguide with polymer core and polymer cladding | Peter Herbrechtsmeier, Gerhard Wieners, Manfred Tschacher, Herbert Fitz | 1990-12-25 |
| 4774304 | Molding powder comprising agglomerated particles of PTFE compounds | Eduard Weiss, Gottfried Burgstaller | 1988-09-27 |
| 4557955 | Shaped articles which are composed of a copolymer containing fluorine groups and which are selectively permeable to liquids and gases and are simultaneously oleophobic and oleophilic | Axel Walch, Walter Seifried, Wolfgang Michel, Jurgen Wildhardt | 1985-12-10 |
| 4524155 | Open-cell/microporous molded article | Axel Walch, Walter Seifried, Wolfgang Michel, Juergen Wildhardt | 1985-06-18 |
| 4499211 | Open-cell/microporous molded article | Axel Walch, Walter Seifried, Wolfgang Michel, Jurgen Wildhardt | 1985-02-12 |
| 4439385 | Continuous process for the agglomeration of PTFE powders in a liquid medium | Eduard Weiss, Gottfried Burgstaller | 1984-03-27 |
| 4408007 | Free-flowing sintering powders which have improved properties and are based on tetrafluoroethylene polymers and a process for their manufacture | Robert Hartwimmer | 1983-10-04 |
| 4391940 | Fluoropolymers with shell-modified particles, and processes for their preparation | Franz Mayer, Herbert Fitz | 1983-07-05 |
| 4369266 | Concentrated dispersions of fluorinated polymers and process for their preparation | Eduard Weiss | 1983-01-18 |
| 4368296 | Free-flowing sintering powders which have improved properties and are based on tetrafluoroethylene polymers, and a process for their manufacture | Robert Hartwimmer | 1983-01-11 |
| 4282162 | Recovery of fluorinated emulsifying acids from basic anion exchangers | — | 1981-08-04 |
| 4267098 | Stabilized copolymers based on ethylene and tetrafluoroethylene, and processes for their preparation | Robert Hartwimmer | 1981-05-12 |
| 4262101 | Copolymers of tetrafluoroethylene and process for their manufacture | Robert Hartwimmer | 1981-04-14 |