EPROVA AG
17Patents
0Active
17Granted
29Portfolio score
Filing activity: Jan 25, 1979 → Jan 8, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6441168B1 | Stable crystalline salts of 5-methyltetrahydrofolic acid | Human Necessities | 31 | Expired |
| US5006655A | Process for the preparation of tetrahydrofolates | Chemistry; Metallurgy | 28 | Expired |
| US6011040A | Use of tetrahydrofolates in natural stereoisomeric form for the production of a pharmaceutical preparation suitable for influencing the homocysteine level, particularly for assisting the remethylation of homocysteine | Human Necessities | 26 | Expired |
| US5010194A | Method for the resolution of folinic acid | Chemistry; Metallurgy | 18 | Expired |
| US5134235A | Process for separating folinic acid | Chemistry; Metallurgy | 11 | Expired |
| US6271374A | Stable crystalline (6S)- and (6R)-tetrahydrofolic acid | Human Necessities | 11 | Expired |
| US5300505A | Stable salts of 5,10-methylenetetrahydrofolic acid | Chemistry; Metallurgy | 10 | Expired |
| US5347005A | Pharmaceutical compositions containing (65)-folinic acid and salts thereof | Chemistry; Metallurgy | 10 | Expired |
| US5817659A | Stable crystalline tetrahydrofolic acid salts | Human Necessities | 8 | Expired |
| US5324836A | Process for the preparation of (6S)- and (6R)-tetrahydrofolic acid | Chemistry; Metallurgy | 8 | Expired |
| US6596721B2 | Stable crystalline (6R) -tetrahydrofolic acid | Human Necessities | 7 | Expired |
| US5455236A | 5,10-methylenetetrahydrofolic acid-cyclodextrin inclusion compounds | Performing Operations; Transporting | 4 | Expired |
| US4503252A | Process for the preparation of serinol and of serinol derivatives, and products obtained therefrom | Chemistry; Metallurgy | 4 | Expired |
| US4189591A | Method of preparing 4-methyl-5-hydroxymethyl-imidazole | Chemistry; Metallurgy | 4 | Expired |
| US6858731B1 | Process for the preparation of pure stereoisomers of tetrahydrofolic acid esters salts and tetrahydrofolic acid by fractionated crystallization of tetrahydrofolic acid esters salts | Chemistry; Metallurgy | 2 | Expired |
| US6160116A | Sodium salt of (6S)-folinic acid | Chemistry; Metallurgy | 2 | Expired |
| US6194600A | Method of producing aminocyanoacetamide | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.