Inventor · disambiguated record
Roland Wald
Also filed as: WALD ROLAND · WALD ROLAND J E
33 granted patents·1 pending application·253 citations·filing 1978–2002
97Inventor score
Files withSANDOZ LTD21CLARIANT FINANCE BVI LTD7ERICSSON TELEFON AB L M2CLARIANT FINANCE BV LIMITED1EMERSON ENERGY SYSTEMS AB1
Top patents by PatentIndex Score
34 records- 0191US5227477ADyes having one or two 2,4- or 4,6-dichloro-5-cyanopyrimidyl groups linked through bridging radicals containing at least two nitrogen atoms to chloro-1,3,5-triazinyl groupsSANDOZ LTD·Filed 1991·Granted Jul 13, 1993·57 cites·28 claims
- 0287US5037964AMetal-free sulfo group-free basis disazo and trisazo compounds containing two different 6-hydroxypyrid-2-one coupling component radicalsSANDOZ LTD·Filed 1986·Granted Aug 6, 1991·23 cites·19 claims
- 0383US5352334AThe use of metal-free sulfo group free basic disazo compounds containing two identical 6-hydroxypyrid-2-one coupling component radicals for producing colored paperSANDOZ LTD·Filed 1992·Granted Oct 4, 1994·20 cites·20 claims
- 0482US4673735AAzo compounds having at least one 6-hydroxypyrid-2-one coupling component radical metal complexes thereof and intermediates thereforSANDOZ LTD·Filed 1984·Granted Jun 16, 1987·15 cites·13 claims
- 0572US4900812ASulfo group-containing metal phlhalocyanine azo compound having a 6-hydroxypyrid-2-one coupling component radicals having a fiber-reactive groupSANDOZ LTD·Filed 1988·Granted Feb 13, 1990·10 cites·21 claims
- 0671US5847111AAluminum phthalocyanine reactive dyesCLARIANT FINANCE BVI LTD·Filed 1996·Granted Dec 8, 1998·13 cites·18 claims
- 0768US5001226AMetal-free disazo and polyazo compounds having at least one 6-hydroxypyrid-2-one coupling component radical linked to a 1-amino- or hydroxy-3-amino- or hydroxybenzene coupling component radical and metal complexes thereofSANDOZ LTD·Filed 1989·Granted Mar 19, 1991·9 cites·19 claims
- 0867US4780106AUse of metal-free azo _compounds having at least one _6-hydroxypyrid-2-one _coupling component radical and metal _complexes thereof for dyeing _substrates and substrates dyed therewithSANDOZ LTD·Filed 1987·Granted Oct 25, 1988·8 cites·24 claims
- 0966US5126443APhthalocyanine azo dyes containing 5-cyano-dichloropyrimidyl groupSANDOZ LTD·Filed 1990·Granted Jun 30, 1992·9 cites·21 claims
- 1065US5527886ADyes containing 5-cyano-2,4 or 4,6-dichloropyrimidyl fiber-reactive groupsSANDOZ LTD·Filed 1992·Granted Jun 18, 1996·9 cites·22 claims
- 1164US7091328B2Fiber-reactive mono-azo dyesCLARIANT FINANCE BVI LTD·Filed 2002·Granted Aug 15, 2006·4 cites·16 claims
- 1264US5084068ADyes containing two phthalocyanine groups linked by a radical containing two quaternized nitrogen atomsSANDOZ LTD·Filed 1990·Granted Jan 28, 1992·8 cites·20 claims
- 1359US5654410AFibre-reactive monoazo dyestuffsCLARIANT FINANCE BVI LTD·Filed 1996·Granted Aug 5, 1997·7 cites·11 claims
- 1459US5455334ASulfonamido-phthalocyanine azo fibre-reactive dyestuffs containing a heterocyclic fibre-reactive groupFiled 1994·Granted Oct 3, 1995·6 cites·10 claims
- 1556US4665165APhthalocyanine basic dyestuffsSANDOZ LTD·Filed 1986·Granted May 12, 1987·5 cites·9 claims
- 1656US4376077ASulpho group-containing anthraquinone dyestuffsSANDOZ LTD·Filed 1978·Granted Mar 8, 1983·4 cites·1 claims
- 1755US5760215AFibre-reactive dyestuffsCLARIANT FINANCE BVI LTD·Filed 1996·Granted Jun 2, 1998·6 cites·12 claims
- 1851US5721343AFibre-reactive azo dyestuffs containing a halo substituted pyrimidine substituentCLARIANT FINANCE BVI LTD·Filed 1995·Granted Feb 24, 1998·5 cites·17 claims
- 1951US5059683ADyes containing 6-hydroxypyrid-2-one groups the 1-positions of which contain substituted 1,3,5-triazinyl or pyrimidyl-piperazino or -piperazinium groups linked through bridging radicals and intermediates thereforSANDOZ LTD·Filed 1989·Granted Oct 22, 1991·3 cites·31 claims
- 2050US6518739B2Zero-voltage-switch snubber circuitEMERSON ENERGY SYSTEMS AB·Filed 2001·Granted Feb 11, 2003·9 cites·23 claims
- 2148US4273720A2-Aralkoxy-anthraquinone dyestuffsSANDOZ LTD·Filed 1978·Granted Jun 16, 1981·2 cites·16 claims
- 2246US6042621AFibre-reactive dyestuffsCLARIANT FINANCE BV LIMITED·Filed 1997·Granted Mar 28, 2000·4 cites·9 claims
- 2344US5491221AFibre-reactive copper-complex formazan compounds which contain a difluoropyrimidinyl groupSANDOZ LTD·Filed 1994·Granted Feb 13, 1996·2 cites·8 claims
- 2439US5583207AFibre-reactive monoazo copper complexes containing a halo substituted pyrimidine substituentSANDOZ LTD·Filed 1995·Granted Dec 10, 1996·2 cites·19 claims
- 2538US7410594B2Trichromatic dyeing process and dye mixtures used thereinCLARIANT FINANCE BVI LTD·Filed 2002·Granted Aug 12, 2008·0 cites·15 claims
- 2637US5578712AFibre-reactive monoazonaphthyl dyestuffsSANDOZ LTD·Filed 1995·Granted Nov 26, 1996·2 cites·18 claims
- 2736US2003183123A1Organic compoundsFiled 2001·Application pending·0 cites
- 2834US5554732AFibre-reactive disazo dyestuffsSANDOZ LTD·Filed 1995·Granted Sep 10, 1996·1 cites·15 claims
- 2934US4405524AAnthraquinone dyes and method of useSANDOZ LTD·Filed 1979·Granted Sep 20, 1983·0 cites·20 claims
- 3033US5077396AAzo compounds containing two 6-hydroxypyrid-2-one coupling component radicals the nitrogen atoms of which are linked by a biscationic radicalSANDOZ LTD·Filed 1990·Granted Dec 31, 1991·4 cites·19 claims
- 3131US4330294AAnthraquinone compounds and process for dyeing therewithSANDOZ LTD·Filed 1980·Granted May 18, 1982·0 cites·28 claims
- 3230US5619401ACircuit arrangementERICSSON TELEFON AB L M·Filed 1995·Granted Apr 8, 1997·4 cites·20 claims
- 3326US6005084AAsymmetric triphenylenedioxazine compoundsCLARIANT FINANCE BVI LTD·Filed 1996·Granted Dec 21, 1999·0 cites·1 claims
- 3424US4695413AProtective circuit for a hacker type DC converterERICSSON TELEFON AB L M·Filed 1985·Granted Sep 22, 1987·2 cites·7 claims
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