Inventor · disambiguated record
Klaus Schaefer
Also filed as: SCHAEFER KLAUS · SCHAEFER KLAUS D · SCHAEFER KLAUS-DIETER
27 granted patents·163 citations·filing 1976–2019
95Inventor score
Files withLEITZ ERNST GMBH10SIEMENS AG6LEICA CAMERA GMBH3CLAAS SELBSTFAHRENDE ERNTEMASCHINEN GMBH2HELL RUDOLF DR ING GMBH2
Top patents by PatentIndex Score
27 records- 0189US4273430APhotographic cameraLEITZ ERNST GMBH·Filed 1980·Granted Jun 16, 1981·26 cites·6 claims
- 0272US4071297AMethod and apparatus for photoelectrically determining the position of at least one image focus planeLEITZ ERNST GMBH·Filed 1976·Granted Jan 31, 1978·25 cites·47 claims
- 0371US4174527AMethod for locally precisely setting the start and end of reproduction in an engraving apparatusHELL RUDOLF DR ING GMBH·Filed 1978·Granted Nov 13, 1979·16 cites·7 claims
- 0468US9603302B2Agricultural working machine having a display deviceCLAAS SELBSTFAHRENDE ERNTEMASCHINEN GMBH·Filed 2014·Granted Mar 28, 2017·2 cites·11 claims
- 0565US4204223AMethod and apparatus for making color corrections in the manufacture of printing platesHELL RUDOLF DR ING GMBH·Filed 1978·Granted May 20, 1980·16 cites·6 claims
- 0660US6645886B1Glow protection bandSIEMENS AG·Filed 1999·Granted Nov 11, 2003·18 cites·28 claims
- 0758USD372723SCompact cameraLEICA CAMERA GMBH·Filed 1995·Granted Aug 13, 1996·10 cites·1 claims
- 0856USD359975SCompact cameraLEICA CAMERA GMBH·Filed 1993·Granted Jul 4, 1995·8 cites·1 claims
- 0952US10862362B2Corona shielding system and electrical machineSIEMENS AG·Filed 2015·Granted Dec 8, 2020·0 cites·7 claims
- 1052US7272978B2Magnetic-inductive flow meter with an electrically isolated measuring tubeABB PATENT GMBH·Filed 2005·Granted Sep 25, 2007·3 cites·13 claims
- 1151US10673294B2Corona shielding system for an electrical machineSIEMENS AG·Filed 2015·Granted Jun 2, 2020·0 cites·7 claims
- 1249US10506748B2Corona shielding system, in particular outer corona shielding system for an electrical machineSIEMENS AG·Filed 2015·Granted Dec 10, 2019·0 cites·10 claims
- 1349US4496231AMirror reflex camera with exposure meterLEITZ ERNST GMBH·Filed 1982·Granted Jan 29, 1985·4 cites·8 claims
- 1448US11081923B2Corona shielding system for an electrical machineSIEMENS AG·Filed 2015·Granted Aug 3, 2021·0 cites·10 claims
- 1548US7791228B2Energy supply of a measuring deviceENDRESS & HAUSER GMBH & CO KG·Filed 2004·Granted Sep 7, 2010·6 cites·8 claims
- 1646US10736249B2Conductive corona shielding paper, in particular for outer corona shieldingSIEMENS AG·Filed 2015·Granted Aug 4, 2020·0 cites·19 claims
- 1744US6863231B2Gadget for washing mixing containersSCHICKER & SCHAEFER GMBH·Filed 2002·Granted Mar 8, 2005·1 cites·17 claims
- 1844US4188102AMirror reflex camera with electronic rangefinderLEITZ ERNST GMBH·Filed 1978·Granted Feb 12, 1980·6 cites·2 claims
- 1942US11284566B2Combine harvester with produce distribution substrategiesCLAAS SELBSTFAHRENDE ERNTEMASCHINEN GMBH·Filed 2019·Granted Mar 29, 2022·0 cites·18 claims
- 2038US6175695B1Manually operable flashlight unitLEICA CAMERA AG·Filed 1999·Granted Jan 16, 2001·1 cites·16 claims
- 2138US4712903AMethod and circuit arrangement for the automatic determination of an exposure valueLEITZ ERNST GMBH·Filed 1986·Granted Dec 15, 1987·2 cites·10 claims
- 2235US4220406AOptical electronic focusing deviceLEITZ ERNST GMBH·Filed 1978·Granted Sep 2, 1980·4 cites·7 claims
- 2334US4816664AFocusing detector having a scanning grating used both as a beam splitter and spatial and frequency filterLEITZ ERNST GMBH·Filed 1986·Granted Mar 28, 1989·4 cites·18 claims
- 2434US4447143AReflex camera with electronic range finderLEITZ ERNST GMBH·Filed 1982·Granted May 8, 1984·4 cites·16 claims
- 2534US4428653AMirror reflex camera with an electronic range finderLEITZ ERNST GMBH·Filed 1982·Granted Jan 31, 1984·4 cites·6 claims
- 2633US4482220ADevice for correctively compensating the aperture error in reproducing systemsLEITZ ERNST GMBH·Filed 1981·Granted Nov 13, 1984·3 cites·12 claims
- 2725US5321555ACompact photographic objective of the triplet type having improved chromatic and monochromatic characteristicsLEICA CAMERA GMBH·Filed 1992·Granted Jun 14, 1994·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →