Inventor · disambiguated record
Walter Brieden
Also filed as: BRIEDEN WALTER
33 granted patents·1 pending application·132 citations·filing 1995–2012
96Inventor score
Top patents by PatentIndex Score
34 records- 0187US6716981B2Process for the preparation of N-(amino-4, 6-dihalo-pyrimidine) formamidesLONZA AG·Filed 2001·Granted Apr 6, 2004·28 cites·11 claims
- 0281US5760264AProcess for preparing optically active metallocenyl-phosphinesLONZA AG·Filed 1995·Granted Jun 2, 1998·30 cites·22 claims
- 0378US7553652B2Process for the preparation of (S)- or (R)-3,3,3-trifluoro-2-hydroxy-2-methylpropionic acidLONZA AG·Filed 2005·Granted Jun 30, 2009·2 cites·17 claims
- 0477US5744606AProcess for the preparation of optically active 3-quinuclidinolLONZA AG·Filed 1997·Granted Apr 28, 1998·21 cites·9 claims
- 0570US7074606B2Process for the preparation of (S) - or (R) -3,3,3-trifluoro-2-hydroxy-2-methylpropionic acidLONZA AG·Filed 2002·Granted Jul 11, 2006·2 cites·11 claims
- 0667US6156893AProcess for the preparation of (1S,4R)- or (1R,4S)- 4-(2-amino-6-chloro-9H-purin-9-yl)-2-cyclopentene-1-methanolLONZA AG·Filed 1998·Granted Dec 5, 2000·10 cites·10 claims
- 0765US6271376B1Process for the preparation of N-(amino-4,6-dihalo-pyrimidine) formamidesLONZA AG·Filed 1999·Granted Aug 7, 2001·9 cites·14 claims
- 0861US7358073B2Process for the preparation of aminoalcohol derivatives and their further conversion to (1R, 4S)-4(2-amino-6-chloro-5-formamido-4- pyrimidinyl)-amino-2-cyclopentenyl-1-methanolLONZA AG·Filed 2006·Granted Apr 15, 2008·0 cites·2 claims
- 0960US7338945B2Process for the preparation of aminoalcohol derivatives and their further conversion to (1R, 4S)-4(2-amino-6-chloro-5-formamido-4-pyrimidinyl)-amino-2-cyclopentenyl-1-methanolLONZA AG·Filed 2006·Granted Mar 4, 2008·0 cites·2 claims
- 1058US7229981B2Process for the preparation of aminoalcohol derivatives and their further conversion to (1R,4S)-4-(2-amino-6-chloro-5-formamido-4-pyrimidinyl)-amino)-2-cyclopentenyl-1-methanolLONZA AG·Filed 2003·Granted Jun 12, 2007·1 cites·1 claims
- 1157US8501967B2Process for the preparation of enantiomerically pure 1-substituted-3-aminoalcoholsBRIEDEN WALTER·Filed 2012·Granted Aug 6, 2013·0 cites·2 claims
- 1257US6448402B2Process for the preparation of aminoalcohol derivatives and their further conversion to (1R, 4S)-4-((2-amino-6-chloro-5-formamido-4-pyrimidinyl)-amino)-2-cyclopentenyl-1-methanolLONZA AG·Filed 2001·Granted Sep 10, 2002·1 cites·7 claims
- 1352US6787347B2Process for the preparation of amino alcohols and derivatives thereof and microorganisms useful in processLONZA AG·Filed 2001·Granted Sep 7, 2004·0 cites·3 claims
- 1450US6137007AEnantiomer compositions of (1R,4S)-1-butyrylamino-4-(hydroxymethyl)-2-cyclopenteneLONZA AG·Filed 1999·Granted Oct 24, 2000·3 cites·6 claims
- 1549US7405065B2Enzyme for the preparation of 1-amino-4-(hydroxymethyl)-2-cyclopentene derivativesLONZA AG·Filed 2004·Granted Jul 29, 2008·0 cites·5 claims
- 1647US8258338B2Process for the preparation of enantiomerically pure 1-substituted-3-aminoalcoholsBRIEDEN WALTER·Filed 2006·Granted Sep 4, 2012·0 cites·25 claims
- 1747US6723868B1Process for the preparation of aminoalcohol derivatives and their further conversion to (1R,4S)-4-((2-amino-6-chloro-5-formamido-4-pyrimidinyl)-amino)-2-cyclopentenyl-1-methanolLONZA AG·Filed 1998·Granted Apr 20, 2004·2 cites·10 claims
- 1846US6011178AProcess for the preparation of 2-amino-4,5,3',4'-tetramethoxybenzophenoneLONZA AG·Filed 1999·Granted Jan 4, 2000·4 cites·9 claims
- 1945US5856485AProcess for preparing 2-piperazinecarboxylic acid derivativesLONZA AG·Filed 1995·Granted Jan 5, 1999·3 cites·20 claims
- 2045US5789596AProcess for the preparation of 1-acyl-4-arylpiperidinesLONZA AG·Filed 1997·Granted Aug 4, 1998·3 cites·17 claims
- 2144US6773910B1Method of preparing (S)- or (R) -3,3,3-trifluoro-2-hydroxy-2-methylpropionic acidFiled 1997·Granted Aug 10, 2004·4 cites·16 claims
- 2244US6262295B1Process for the preparation of a racemic or optically active 4-(hydroxymethyl)-2-cyclopentene derivativeLONZA AG·Filed 1999·Granted Jul 17, 2001·2 cites·9 claims
- 2343US6524844B2Process for preparing optically active 1-amino-4-(hydroxymethyl) cyclopent-2-ene derivativesLONZA AG·Filed 2001·Granted Feb 25, 2003·0 cites·7 claims
- 2443US6368850B1Process for the preparation of amino alcohols and derivatives thereofLONZA AG·Filed 1997·Granted Apr 9, 2002·4 cites·13 claims
- 2542US6716999B2Pyrone derivatives and method for producing sameLONZA AG·Filed 2000·Granted Apr 6, 2004·0 cites·10 claims
- 2640US5998618AProcess for preparing 3-alkoxy-5-alkypyrazin-2-aminesLONZA AG·Filed 1998·Granted Dec 7, 1999·1 cites·17 claims
- 2740US5877319AProcess for preparing 3-alkoxy-5-alkylpyrazin-2-aminesLONZA AG·Filed 1997·Granted Mar 2, 1999·1 cites·18 claims
- 2839US6160115AProcess for preparing N-[5-(diphenylphosphinoylmethyl)-4-(4-fluorophenyl)-6-isopropylpyrimidin -2-yl]-N-methylmethanesulfonamideLONZA AG·Filed 2000·Granted Dec 12, 2000·0 cites·16 claims
- 2938US7417153B2Method for the production of 3-amino-5-(hydroxymethyl)cyclopentane-1,2-diol derivativesLONZA AG·Filed 2005·Granted Aug 26, 2008·0 cites·32 claims
- 3038US2010312003A1Method for the preparation of organic nitratesBRIEDEN WALTER·Filed 2008·Application pending·0 cites
- 3136US5908935AProcess for the preparation of 1-Acyl-4-arylpiperidinesLONZA AG·Filed 1998·Granted Jun 1, 1999·1 cites·2 claims
- 3233US5939549AProcess for the production of 1,4,5,6-tetrahydropyrazine-2-carboxylic acid amidesLONZA AG·Filed 1996·Granted Aug 17, 1999·0 cites·16 claims
- 3332US6252112B1Process for the preparation of an enantiomer of a (1R, 4S) or (1S, 4R)-1-amino-4-(hydroxymethyl)-2-cyclopentene derivativeLONZA AG·Filed 1999·Granted Jun 26, 2001·0 cites·1 claims
- 3428US6433170B1Method for producing 4-[2',5'-diamino-6'-halopyrimidine-4'-yl)amino]- cyclopent-2-enylmethanolsLONZA GROUP·Filed 1999·Granted Aug 13, 2002·0 cites·16 claims
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