Inventor · disambiguated record
Wilfried Hofmann
Also filed as: HOFMANN WILFRIED
31 granted patents·1 pending application·251 citations·filing 1974–2021
96Inventor score
Top patents by PatentIndex Score
32 records- 0195US4076384ARear-projection viewing screenAGFA GEVAERT AG·Filed 1976·Granted Feb 28, 1978·51 cites·10 claims
- 0282US8944533B2RackHOFMANN WILFRIED·Filed 2011·Granted Feb 3, 2015·11 cites·15 claims
- 0378US7044212B1Refrigeration device and a method for producing the sameNFT NANOFILTERTECHNIK GMBH·Filed 2000·Granted May 16, 2006·26 cites·30 claims
- 0474US7655075B2Filter element and method for the production thereofNFT NONOFILTERTECHNIK GMBH·Filed 2004·Granted Feb 2, 2010·16 cites·32 claims
- 0572US9022098B2Multistage heat exchanging duct comprising a parallel conduitHOFMANN WILFRIED·Filed 2007·Granted May 5, 2015·6 cites·25 claims
- 0672US7374672B2Filter device comprising integral centrifugal separationNFT NANOFILTERTECHNIK GMBH·Filed 2003·Granted May 20, 2008·17 cites·23 claims
- 0768US4731639AMicrofilm pickup camera with marking means for screened originalsAGFA GEVAERT AG·Filed 1987·Granted Mar 15, 1988·18 cites·18 claims
- 0866US8499575B2Air-conditioning system for electronic componentsNICOLAI WALTER·Filed 2009·Granted Aug 6, 2013·3 cites·16 claims
- 0966US4564276AMicrofilm sensing device with a projection lamp and cold-light mirrorAGFA GEVAERT AG·Filed 1984·Granted Jan 14, 1986·9 cites·15 claims
- 1063US4638336ACover for vacuum ink printing headAGFA GEVAERT AG·Filed 1985·Granted Jan 20, 1987·12 cites·14 claims
- 1162US6711038B2Method for controlling bi-directional switches in matrix convertersSIEMENS AG·Filed 2002·Granted Mar 23, 2004·17 cites·7 claims
- 1261US4131348ACollapsible microfilm readerAGFA GEVAERT AG·Filed 1977·Granted Dec 26, 1978·6 cites·5 claims
- 1360US4069989ACartridge for strip-shaped record carriersAGFA GEVAERT AG·Filed 1976·Granted Jan 24, 1978·6 cites·14 claims
- 1457US7141167B2Filter deviceNFT NANOFILTERTECHNIK GMBH·Filed 2002·Granted Nov 28, 2006·6 cites·19 claims
- 1557US4120574APortable microfilm readerAGFA GEVAERT AG·Filed 1977·Granted Oct 17, 1978·5 cites·6 claims
- 1656US12427952B2Concrete pump and method for supporting a concrete pumpPUTZMEISTER ENGINEERING GMBH·Filed 2020·Granted Sep 30, 2025·0 cites·18 claims
- 1756US4220404AMicrofiche readerAGFA GEVAERT AG·Filed 1978·Granted Sep 2, 1980·6 cites·7 claims
- 1854US6602397B1Method for producing a filterNFT NANOFILTERTECHNIK GMBH·Filed 2000·Granted Aug 5, 2003·4 cites·17 claims
- 1952US4077708AMicrofilm readerAGFA GEVAERT AG·Filed 1976·Granted Mar 7, 1978·5 cites·6 claims
- 2046US7654308B2Heat exchangerNFT NANOFILTERTECHNIK GMBH·Filed 2004·Granted Feb 2, 2010·2 cites·25 claims
- 2145US7458416B2Heat-exchanging deviceNFT NANOFILTERTECHNIK GMBH·Filed 2003·Granted Dec 2, 2008·6 cites·14 claims
- 2243US4244641AMicrofilm readerAGFA GEVAERT AG·Filed 1977·Granted Jan 13, 1981·3 cites·2 claims
- 2340US11557900B2Systems containing a double fed induction machine and a fly wheel, and methods of operating such systemsSIEMENS AG·Filed 2021·Granted Jan 17, 2023·0 cites·12 claims
- 2440US4235536AMicrofilm readerAGFA GEVAERT AG·Filed 1979·Granted Nov 25, 1980·2 cites·12 claims
- 2539US4066328AIrradiating system for line-by-line copierAGFA GEVAERT AG·Filed 1976·Granted Jan 3, 1978·4 cites·10 claims
- 2635US9153945B2Frame piece for a rackHOFMANN WILFRIED·Filed 2011·Granted Oct 6, 2015·0 cites·7 claims
- 2735US3947102AApparatus for retrieving microimagesAGFA GEVAERT·Filed 1974·Granted Mar 30, 1976·1 cites·13 claims
- 2833US4072860AApparatus for optical scanning of microfilms or the likeAGFA GEVAERT AG·Filed 1976·Granted Feb 7, 1978·3 cites·19 claims
- 2932US2014347046A1Use of flexible magnetic thin layer sensor elementsLEIBNIZ INST FUER FESTKOERPER·Filed 2012·Application pending·0 cites
- 3031US3975749AContinuous microfilming cameraAGFA GEVAERT AG·Filed 1975·Granted Aug 17, 1976·1 cites·10 claims
- 3129US6328876B1Method for producting a filterNFT NANOFILTERTECHNIK GMBH·Filed 1998·Granted Dec 11, 2001·4 cites·12 claims
- 3223US4601558AAutoloading microfiche readerAGFA GEVAERT AG·Filed 1985·Granted Jul 22, 1986·1 cites·9 claims
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