Inventor · disambiguated record
Alfred Krempel
Also filed as: FIEGE HELMUT · KREMPEL ALFRED
5 granted patents·113 citations·filing 1975–1998
79Inventor score
Files withHAARMANN & REIMER GMBH5
Top patents by PatentIndex Score
5 records- 0194US5585091AUse of benzazoles UV absorbers, new benzazoles and a process for their preparationHAARMANN & REIMER GMBH·Filed 1995·Granted Dec 17, 1996·91 cites·5 claims
- 0280US4192959AProcess for the preparation of pure 2-hydroxybenzyl alcohol, pure 4-hydroxybenzyl alcohol or a mixture of both hydroxy-benzyl alcoholsHAARMANN & REIMER GMBH·Filed 1978·Granted Mar 11, 1980·13 cites·15 claims
- 0345US4026929ASelective extraction of glyoxylic acid from aqueous mixture with glyoxalHAARMANN & REIMER GMBH·Filed 1975·Granted May 31, 1977·2 cites·3 claims
- 0440US6222076B1Process for the preparation of substituted cycloketonesHAARMANN & REIMER GMBH·Filed 1998·Granted Apr 24, 2001·2 cites·6 claims
- 0538US6042814ASulphonic acids and their use as UV absorbersHAARMANN & REIMER GMBH·Filed 1996·Granted Mar 28, 2000·5 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →