Inventor · disambiguated record
William Happer
Also filed as: HAPPER WILLIAM
26 granted patents·1,175 citations·filing 1974–2009
97Inventor score
Files withUNIV PRINCETON17MEDI-PHYSICS INC3HAPPER WILLIAM2UNIV NEW YORK STATE RES FOUND2PRINCETON UNIVERSITY OFFICE OF1
Top patents by PatentIndex Score
26 records- 0197US7323941B1Method and system for operating a laser self-modulated at alkali-metal atom hyperfine frequencyUNIV PRINCETON·Filed 2005·Granted Jan 29, 2008·60 cites·52 claims
- 0297US5545396AMagnetic resonance imaging using hyperpolarized noble gasesUNIV NEW YORK STATE RES FOUND·Filed 1994·Granted Aug 13, 1996·225 cites·46 claims
- 0394US5809801ACryogenic accumulator for spin-polarized xenon-129UNIV PRINCETON·Filed 1996·Granted Sep 22, 1998·118 cites·41 claims
- 0491US7102451B2Method and system for operating an atomic clock with alternating-polarization lightPRINCETON UNIVERSITY OFFICE OF·Filed 2005·Granted Sep 5, 2006·79 cites·81 claims
- 0591US5642625AHigh volume hyperpolarizer for spin-polarized noble gasUNIV PRINCETON·Filed 1996·Granted Jul 1, 1997·192 cites·62 claims
- 0689US5785953AMagnetic resonance imaging using hyperpolarized noble gasesUNIV PRINCETON·Filed 1996·Granted Jul 28, 1998·55 cites·45 claims
- 0788US8009520B2Method and system for operating an atomic clock using a self-modulated laser with electrical modulationUNIV PRINCETON·Filed 2008·Granted Aug 30, 2011·16 cites·17 claims
- 0887US5789921AMagnetic resonance imaging using hyperpolarized noble gasesUNIV NEW YORK STATE RES FOUND·Filed 1995·Granted Aug 4, 1998·49 cites·9 claims
- 0986US5860295ACryogenic accumulator for spin-polarized xenon-129UNIV PRINCETON·Filed 1998·Granted Jan 19, 1999·58 cites·8 claims
- 1085US7439814B2Method and system for operating an atomic clock with simultaneous control of frequency and magnetic fieldUNIV PRINCETON·Filed 2006·Granted Oct 21, 2008·14 cites·36 claims
- 1185US6888780B2Method and system for operating an atomic clock with simultaneous locking of field and frequencyUNIV PRINCETON·Filed 2004·Granted May 3, 2005·43 cites·32 claims
- 1283US5612103ACoatings for production of hyperpolarized noble gasesUNIV PRINCETON·Filed 1995·Granted Mar 18, 1997·61 cites·47 claims
- 1381US7902927B2System and method for modulating pressure in an alkali-vapor cellSTANFORD RES INST INT·Filed 2009·Granted Mar 8, 2011·10 cites·15 claims
- 1480US6241966B1Magnetic resonance imaging using Hyperpolarized noble gasesUNIV PRINCETON·Filed 1998·Granted Jun 5, 2001·29 cites·48 claims
- 1579US6648130B1Hyperpolarized gas transport and storage devices and associated transport and storage methods using permanent magnetsMEDI PHYSICS INC·Filed 2000·Granted Nov 18, 2003·24 cites·51 claims
- 1679US6593144B2Magnetic resonance imaging using hyperpolarized noble gasesUNIV PRINCETON·Filed 2000·Granted Jul 15, 2003·15 cites·23 claims
- 1778US7825736B2Method for suppressing light shift in optical pumping systemsUNIV PRINCETON·Filed 2008·Granted Nov 2, 2010·10 cites·20 claims
- 1873US8020694B2Hyperpolarized gas transport and storage devices and associated transport and storage methods using permanent magnetsMEDI PHYSICS INC·Filed 2006·Granted Sep 20, 2011·4 cites·5 claims
- 1973US6919770B2Method and system for operating an atomic clock with reduced spin-exchange broadening of atomic clock resonancesUNIV PRINCETON·Filed 2003·Granted Jul 19, 2005·16 cites·32 claims
- 2072US7931794B2Method and system for electrolytic fabrication of atomic clock cellsUNIV PRINCETON·Filed 2006·Granted Apr 26, 2011·6 cites·34 claims
- 2171US4005355AMethod and apparatus for stimulating narrow line resonance conditionsHAPPER WILLIAM·Filed 1974·Granted Jan 25, 1977·20 cites·22 claims
- 2267US8456161B2Polarizing nuclei solids via spin transfer from an optically-pumped alkali vaporHAPPER WILLIAM·Filed 2007·Granted Jun 4, 2013·2 cites·48 claims
- 2366US6123919AMagnetic resonance imaging using hyperpolarized noble gasesUNIV PRINCETON·Filed 1999·Granted Sep 26, 2000·25 cites·21 claims
- 2465US7066319B2Hyperpolarized gas transport and storage devices and associated transport and storage methods using permanent magnetsMEDI PHYSICS INC·Filed 2003·Granted Jun 27, 2006·11 cites·17 claims
- 2552US6551559B1Sol-gel coated polarization vesselsUNIV PRINCETON·Filed 1998·Granted Apr 22, 2003·15 cites·32 claims
- 2651US6318092B1Alkali metal hybrid spin-exchange optical pumpingUNIV PRINCETON·Filed 1998·Granted Nov 20, 2001·18 cites·26 claims
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