Inventor · disambiguated record
Ugo Pfeiffer
Also filed as: PFEIFFER UGO · PFEIFFER UGO C · PFEIFFER UGO CLAUDIO
14 granted patents·1 pending application·117 citations·filing 1985–2011
91Inventor score
Top patents by PatentIndex Score
15 records- 0179US6257336B1Well cementing method using HMHPG filtrate reducerINST FRANCAIS DU PETROLE·Filed 1997·Granted Jul 10, 2001·42 cites·11 claims
- 0275US6706112B2Additives based on hydroxyalkyl guar derivatives for use in mortars and mortars including themLAMBERTI SPA·Filed 2002·Granted Mar 16, 2004·19 cites·8 claims
- 0365US8765845B2Hydraulic binder compositionBIASOTTI BARBARA·Filed 2011·Granted Jul 1, 2014·2 cites·20 claims
- 0465US7396924B2Building additives based on purified hydroxyalkyl guarLAMBERTI SPA·Filed 2003·Granted Jul 8, 2008·5 cites·18 claims
- 0564US7355039B2Building additives based on purified hydrophobically modified hydroxyalkyl guarLAMBERTI SPA·Filed 2003·Granted Apr 8, 2008·8 cites·18 claims
- 0664US4797496AProcess for the preparation of pyrrolidone derivativesISF SPA·Filed 1988·Granted Jan 10, 1989·6 cites·24 claims
- 0762US4629797AProcess for the preparation of pyrrolidone derivativesISF SPA·Filed 1985·Granted Dec 16, 1986·9 cites·8 claims
- 0861US4788300ASubstituted butanamido acetate compounds for the preparation of pyrrolidone derivativesISF SPA·Filed 1986·Granted Nov 29, 1988·8 cites·3 claims
- 0953US4824861APyrrolidone derivatives and memory enhancement use thereofISF SPA·Filed 1987·Granted Apr 25, 1989·6 cites·4 claims
- 1043US8017560B2Fast dissolving hydroxyalkyl guar derivativesLAMBERTI SPA·Filed 2005·Granted Sep 13, 2011·0 cites·20 claims
- 1142US4719222APharmacologically active 5-oxo-1-imidazolidine acetamide compoundsISF SPA·Filed 1986·Granted Jan 12, 1988·3 cites·13 claims
- 1241US4868313AA process for making pyrrolidone derivativesISF SPA·Filed 1989·Granted Sep 19, 1989·8 cites·1 claims
- 1339US8580952B2Glyoxal free purified cationic polygalactomannanPFEIFFER UGO·Filed 2011·Granted Nov 12, 2013·0 cites·5 claims
- 1436US2006258799A1Aqueous emulsions of polyvinyl esters containing hydroxypropylguarRINALDI CRISTINA·Filed 2004·Application pending·0 cites
- 1533US4703054ANootropic imidazolidinonesISF SPA·Filed 1986·Granted Oct 27, 1987·1 cites·12 claims
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