Assignee
STOPPANI LUIGI SPA
IT·16 granted patents·105 citations·filing 1978–2001
Top patents by PatentIndex Score
16 records- 0181US4401573AContinuous process for the removal of chromium from waste waters and valorization of the recovered chromiumSTOPPANI LUIGI SPA·Filed 1981·Granted Aug 30, 1983·28 cites·12 claims
- 0271US4568745AAdduct of mutually stabilizing menadione and thiamineSTOPPANI LUIGI SPA·Filed 1983·Granted Feb 4, 1986·12 cites·3 claims
- 0368US6488924B1Vitamin K adduct, particularly suitable as vitamin supplement for feedsSTOPPANI LUIGI SPA·Filed 2000·Granted Dec 3, 2002·8 cites·17 claims
- 0467US4560546AChromium hydroxide precipitate obtained by a continuous process for the removal of chromium from waste watersSTOPPANI LUIGI SPA·Filed 1983·Granted Dec 24, 1985·13 cites·11 claims
- 0563US4217457AHighly selective oxidizing process for preparing pyridin-carboxylic acidsSTOPPANI LUIGI SPA·Filed 1978·Granted Aug 12, 1980·5 cites·16 claims
- 0650US6596064B2Biocidal-antifouling agents with low ecotoxicity indexSTOPPANI LUIGI SPA·Filed 2001·Granted Jul 22, 2003·1 cites·7 claims
- 0746US4759922AAnhydrous sodium dichromate in flakes; process and apparatus for its preparation on an industrial scaleSTOPPANI LUIGI SPA·Filed 1985·Granted Jul 26, 1988·6 cites·4 claims
- 0846US4577019AStabilized adducts of menadione bisulfite with p-aminobenzoic acid or adenineSTOPPANI LUIGI SPA·Filed 1983·Granted Mar 18, 1986·13 cites·2 claims
- 0944US5374408AProcess for the preparation of alkaline chromates from chromium mineralsSTOPPANI LUIGI SPA·Filed 1991·Granted Dec 20, 1994·10 cites·13 claims
- 1042US4237301ATwo stage process for preparing 2,6-pyridin-dicarboxylic acidSTOPPANI LUIGI SPA·Filed 1978·Granted Dec 2, 1980·2 cites·9 claims
- 1138US5112583AProcess for recovering chromic anhydride from exhausted aqueous chromium plating bath solutions with exploitation of the recovered chromiumSTOPPANI LUIGI SPA·Filed 1988·Granted May 12, 1992·4 cites·6 claims
- 1234US4419515ATwo stage process for preparing 2,6-pyridinedicarboxylic acidSTOPPANI LUIGI SPA·Filed 1981·Granted Dec 6, 1983·1 cites·7 claims
- 1331US5037620APreparation of anhydrous sodium dichromate flakesSTOPPANI LUIGI SPA·Filed 1988·Granted Aug 6, 1991·1 cites·3 claims
- 1429US4497634ATanning material containing basic chromic sulfate and mercaptoacetic acidSTOPPANI LUIGI SPA·Filed 1983·Granted Feb 5, 1985·1 cites·2 claims
- 1520US5110360AProduct capable of inhibiting the corrosion of the reinforcements present in concrete or cement mortar and related processSTOPPANI LUIGI SPA·Filed 1989·Granted May 5, 1992·0 cites·8 claims
- 1610US6228244B1Chromium plating from baths catalyzed with alkanedisulfonic-alkanesulfonic compounds with inhibitors such as aminealkanesulfonic and heterocyclic basesSTOPPANI LUIGI SPA·Filed 1998·Granted May 8, 2001·0 cites·15 claims
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