Inventor · disambiguated record
Christian C. Petersen
Also filed as: PETERSEN CHRISTIAN · PETERSEN CHRISTIAN C · PETERSEN CHRISTIAN FRIMUNDT · PETERSON CHRISTIAN C
62 granted patents·6 pending applications·2,044 citations·filing 1974–2020
99Inventor score
Files withPOLAROID CORP24PETERSEN TECHNOLOGY CORP12DANFOSS COMPRESSORS GMBH9PETERSEN MFG5HEWLETT PACKARD DEVELOPMENT CO3
Top patents by PatentIndex Score
68 records- 0199US4264154AApparatus for automatically controlling transmission of light through a lens systemPOLAROID CORP·Filed 1979·Granted Apr 28, 1981·214 cites·14 claims
- 0298US6707224B1PM motor and generator with a vertical stator core assembly formed of pressure shaped processed ferromagnetic particlesPETERSEN TECHNOLOGY CORP·Filed 2003·Granted Mar 16, 2004·81 cites·30 claims
- 0398US5659217APermanent magnet d.c. motor having a radially-disposed working flux gapFiled 1995·Granted Aug 19, 1997·181 cites·40 claims
- 0498US4363980ALinear motorPOLAROID CORP·Filed 1981·Granted Dec 14, 1982·93 cites·16 claims
- 0597US7026773B2Multiphase motors with single point sensing based commutationPETERSEN TECHNOLOGY CORP·Filed 2005·Granted Apr 11, 2006·55 cites·48 claims
- 0697US4658214AMagnetic position indicator using multiple probesPOLAROID CORP·Filed 1982·Granted Apr 14, 1987·52 cites·8 claims
- 0796US5874796APermanent magnet D.C. motor having a radially-disposed working flux gapFiled 1997·Granted Feb 23, 1999·123 cites·20 claims
- 0896US4949000AD.C. motorMUELLER & SMITH LPA·Filed 1988·Granted Aug 14, 1990·90 cites·16 claims
- 0996US4543551AApparatus for orienting magnetic particles in recording mediaPOLAROID CORP·Filed 1984·Granted Sep 24, 1985·59 cites·6 claims
- 1095US6617747B1PM motor and generator with a vertical stator core assembly formed of pressure shaped processed ferromagnetic particlesPETERSEN TECHNOLOGY CORP·Filed 2002·Granted Sep 9, 2003·55 cites·48 claims
- 1194US7694093B2Memory module and method for mirroring data by rankHEWLETT PACKARD DEVELOPMENT CO·Filed 2007·Granted Apr 6, 2010·43 cites·14 claims
- 1294US7202620B2Apparatus and method for dissipating a portion of the commutation derived collapsing field energy in a multi-phase unipolar electric motorPETERSEN TECHNOLOGY CORP·Filed 2006·Granted Apr 10, 2007·24 cites·9 claims
- 1394US4870306AMethod and apparatus for precisely moving a motor armaturePOLAROID CORP·Filed 1981·Granted Sep 26, 1989·69 cites·7 claims
- 1493US8116144B2Memory module having a memory device configurable to different data pin configurationsSHAW MARK E·Filed 2008·Granted Feb 14, 2012·42 cites·16 claims
- 1593US6891343B2Multiphase motors with single point sensing based commutationPETERSEN TECHNOLOGY CORP·Filed 2003·Granted May 10, 2005·50 cites·48 claims
- 1692US7166948B2Apparatus and method for dissipating a portion of the commutation derived collapsing field energy in a multi-phase unipolar electric motorPETERSEN TECHNOLOGY CORP·Filed 2005·Granted Jan 23, 2007·20 cites·16 claims
- 1791US4745345AD.C. motor with axially disposed working flux gapCAMATEC CORP·Filed 1986·Granted May 17, 1988·63 cites·26 claims
- 1888US6441530B1D.C. PM motor with a stator core assembly formed of pressure shaped processed ferromagnetic particlesPETERSEN TECHNOLOGY CORP·Filed 2000·Granted Aug 27, 2002·38 cites·45 claims
- 1988US4731579AMagnetic position indicator and actuator using samePOLAROID CORP·Filed 1982·Granted Mar 15, 1988·44 cites·1 claims
- 2085US7005764B2Electrodynamic apparatus and method of manufacturePETERSEN TECHNOLOGY CORP·Filed 2003·Granted Feb 28, 2006·27 cites·39 claims
- 2185US4409576AMethod and apparatus which change magnetic forces of a linear motorPOLAROID CORP·Filed 1982·Granted Oct 11, 1983·26 cites·12 claims
- 2285US4265530AShutter blade drive systemPOLAROID CORP·Filed 1979·Granted May 5, 1981·35 cites·15 claims
- 2384US7793043B2Buffered memory architectureHEWLETT PACKARD DEVELOPMENT CO·Filed 2006·Granted Sep 7, 2010·18 cites·17 claims
- 2484US4837474AD.C. motorCAMATEC CORP·Filed 1988·Granted Jun 6, 1989·53 cites·21 claims
- 2584US4122437AIntrusion alarm control systemCEGG INC·Filed 1976·Granted Oct 24, 1978·23 cites·10 claims
- 2683US4730524ALong nose locking plierPETERSEN MFG·Filed 1985·Granted Mar 15, 1988·39 cites·12 claims
- 2783USD261096SHand toolPETERSEN MFG·Filed 1978·Granted Oct 6, 1981·16 cites·1 claims
- 2881US4458227AElectromagnetic actuatorsPOLAROID CORP·Filed 1982·Granted Jul 3, 1984·23 cites·13 claims
- 2980US4541312ALong nose locking plierPETERSEN MFG·Filed 1981·Granted Sep 17, 1985·32 cites·12 claims
- 3078US8845298B2Driving arrangement for a pump or compressorLARSEN ANDREAS BØRRE·Filed 2009·Granted Sep 30, 2014·18 cites·15 claims
- 3178US6798111B1Plastic encapsulated electrodynamic apparatusPETERSEN TECHNOLOGY CORP·Filed 2003·Granted Sep 28, 2004·22 cites·25 claims
- 3278US4709601ALong nose locking pliersPETERSEN MFG·Filed 1985·Granted Dec 1, 1987·25 cites·12 claims
- 3377US4409505AElectric motor having improved operating characteristicsPOLAROID CORP·Filed 1981·Granted Oct 11, 1983·30 cites·6 claims
- 3476US4641787AMethod of comminuting rare earth powder for producing rare earth magnetPOLAROID CORP·Filed 1983·Granted Feb 10, 1987·25 cites·13 claims
- 3575US11522426B2Double/twin radial air gap permanent magnet brushless motorPETERSEN TECH CORPORATION·Filed 2020·Granted Dec 6, 2022·1 cites·24 claims
- 3675US4546680ALong nose locking pliersPETERSEN MFG·Filed 1982·Granted Oct 15, 1985·26 cites·13 claims
- 3775US4227188AIntrusion alarm control systemPETERSEN CHRISTIAN C·Filed 1978·Granted Oct 7, 1980·27 cites·9 claims
- 3874US4433273ACamera motor belt drive systemPOLAROID CORP·Filed 1982·Granted Feb 21, 1984·11 cites·14 claims
- 3972US7100494B2Piston arrangementDANFOSS COMPRESSORS GMBH·Filed 2004·Granted Sep 5, 2006·14 cites·17 claims
- 4072US4558937AElectromagnetic blade mechanismPOLAROID CORP·Filed 1984·Granted Dec 17, 1985·10 cites·14 claims
- 4172US4063227ASmoke detectorCEGA INC·Filed 1975·Granted Dec 13, 1977·23 cites·18 claims
- 4269US7309940B2Rotor arrangement for an electrical drive motor of a compressor, particularly a refrigerant compressorDANFOSS COMPRESSORS GMBH·Filed 2005·Granted Dec 18, 2007·5 cites·9 claims
- 4369US6617740B2D.C. PM motor and generator with a stator core assembly formed of pressure shaped processed ferromagnetic particlesPETERSEN TECHNOLOGY CORP·Filed 2002·Granted Sep 9, 2003·13 cites·50 claims
- 4469US4407578AEfficient electromagnetic actuator usable as photographic shutterPOLAROID CORP·Filed 1982·Granted Oct 4, 1983·9 cites·5 claims
- 4568US4415251ACamera shutter having bobbin driven bladesPOLAROID CORP·Filed 1982·Granted Nov 15, 1983·8 cites·15 claims
- 4666US8197889B2Metal nanowires with an oxide sheath and production method for samePETERSEN CHRISTIAN·Filed 2007·Granted Jun 12, 2012·4 cites·30 claims
- 4765US4012611AInertia switch for anti-intrusion sensing systemsCEGA INC·Filed 1975·Granted Mar 15, 1977·15 cites·10 claims
- 4864US7134383B2Piston arrangementDANFOSS COMPRESSORS GMBH·Filed 2004·Granted Nov 14, 2006·10 cites·13 claims
- 4963US4558938ATwin rotatable electromagnetically driven blade mechanismPOLAROID CORP·Filed 1983·Granted Dec 17, 1985·7 cites·12 claims
- 5063US4497557AElectromagnetic shutter mechanismPOLAROID CORP·Filed 1982·Granted Feb 5, 1985·7 cites·4 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
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