WE

Wolfgang Ehrfeld

KG Kernforschungszentrum Karlsruhe Gmbh: 25 patents #1 of 363Top 1%
IG Institut Für Mikrotechnik Mainz Gmbh: 13 patents #1 of 70Top 2%
Hoechst Gmbh: 1 patents #2,248 of 4,020Top 60%
DA Dragerwerk Aktiegesellschaft: 1 patents #170 of 361Top 50%
FA Fag Oem Und Handel Ag: 1 patents #5 of 23Top 25%
IBM: 1 patents #44,794 of 70,183Top 65%
SC Schaeffler: 1 patents #136 of 346Top 40%
Overall (All Time): #63,498 of 4,157,543Top 2%
46
Patents All Time

Issued Patents All Time

Showing 26–46 of 46 patents

Patent #TitleCo-InventorsDate
4872888 Microporous membrane filter and method of producing same Peter Hagmann, Jurgen Mohr, Dietrich Munchmeyer 1989-10-10
4797211 Cross flow microfilter Dietrich Munchmeyer 1989-01-10
4784935 Method of producing a passive optical device including at least one reflection grating Dietrich Munchmeyer 1988-11-15
4738010 Method of producing a sheet or plate-shaped structure as the bearing material for slide bearings Peter Hagmann, Werner Schelb 1988-04-19
4705605 Method for producing a spinning nozzle plate Erwin Becker, Peter Hagmann 1987-11-10
4703559 Method for producing connecting elements for electrically joining microelectronic components Peter Hagmann, Dietrich Munchmeyer, Erwin Becker 1987-11-03
4698285 Method for producing deep-etch, X-ray lithography masks Asim Maner, Dietrich Munchmeyer 1987-10-06
4694548 Method for producing a spinning nozzle plate Peter Hagmann 1987-09-22
4693791 Method for producing spinning nozzle plates Erwin Becker, Peter Hagmann 1987-09-15
4661212 Method for producing a plurality of plate shaped microstructured metal bodies Peter Hagmann, Asim Maner, Dietrich Munchmeyer, Erwin Becker 1987-04-28
4563250 Method for producing multichannel plates Erwin Becker 1986-01-07
4563251 Layered multichannel metal plates for image amplifiers Erwin Becker, Frank Becker 1986-01-07
4551157 Method for separating light additive gas in separating nozzle cascades Erwin Becker, Wolfgang Fritz, Harald Steinhaus, Peter Bley 1985-11-05
4541977 Method for producing separating nozzle elements Erwin Becker, Wilhelm Bier, Dietrich Munchmeyer 1985-09-17
4514095 Motionless mixer Gunther Krieg 1985-04-30
4493753 Method for producing separating nozzle elements for the separation of fluid mixtures Erwin Becker, Dietrich Munchmeyer, Hans Betz, Anton Heuberger 1985-01-15
4422905 Method for producing separating nozzle elements used for separating gaseous or vaporous mixtures Erwin Becker, Gunther Krieg, Wilhelm Bier 1983-12-27
4351653 Method for producing separating nozzle elements Erwin Becker, Gunther Krieg, Wilhelm Bier 1982-09-28
4246007 Separating gaseous or vaporous substances according to the separating nozzle principle Erwin Becker, Peter Bley, Ursula Ehrfeld, Ulrich Knapp 1981-01-20
4235606 Separation of gaseous or vaporous substances according to the separating nozzle principle Erwin Becker, Peter Bley, Ursula Ehrfeld, Gunther Krieg 1980-11-25
4205913 Determination of the partial pressure and the concentration of a gas Gunther Krieg 1980-06-03