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Schaffhausen, Switzerland

Eprova Ag

USPTO Granted Patents = 16

% Expired Patents = 6.3

Forward Citations = 164

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21 inventors (with patents filed for the assignee):

Martin Ulmann (11 out of 20 patents)

Josef Conti (7 out of 9 patents)

Rudolf Moser (6 out of 46 patents)

4. Hans R Muller (6 out of 9 patents)

5. Hans R Mueller (4 out of 4 patents)

6. Thomas Ammann (3 out of 11 patents)

7. Hans Rudolf Müller (3 out of 4 patents)

8. Gunter Muerdel (3 out of 3 patents)

9. Heinrich Bollinger (2 out of 6 patents)

10. Viola Groehn (1 out of 40 patents)

11. Alfred Hedinger (1 out of 9 patents)

12. Thomas Egger (1 out of 14 patents)

13. Martin Kurz (1 out of 4 patents)

14. Sergio Bianchi (1 out of 3 patents)

15. Rudolf Müller (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 6858731 - Process for the preparation of pure stereoisomers of tetrahydrofolic acid esters salts and tetrahydrofolic acid by fractionated crystallization of tetrahydrofolic acid esters salts (2005-02-22),

2. 6596721 - Stable crystalline (6R) -tetrahydrofolic acid (2003-07-22),

3. 6441168 - Stable crystalline salts of 5-methyltetrahydrofolic acid (2002-08-27),

4. 6271374 - Stable crystalline (6S)- and (6R)-tetrahydrofolic acid (2001-08-07),

5. 6194600 - Method of producing aminocyanoacetamide (2001-02-27),

6. 6160116 - Sodium salt of (6S)-folinic acid (2000-12-12),

7. 6011040 - Use of tetrahydrofolates in natural stereoisomeric form for the (2000-01-04),

8. 5817659 - Stable crystalline tetrahydrofolic acid salts (1998-10-06),

9. 5455236 - 5,10-methylenetetrahydrofolic acid-cyclodextrin inclusion compounds (1995-10-03),

10. 5347005 - Pharmaceutical compositions containing (65)-folinic acid and salts (1994-09-13),

11. 5300505 - Stable salts of 5,10-methylenetetrahydrofolic acid (1994-04-05),

12. 5134235 - Process for separating folinic acid (1992-07-28),

13. 5010194 - Method for the resolution of folinic acid (1991-04-23),

14. 5006655 - Process for the preparation of tetrahydrofolates (1991-04-09),

15. 4503252 - Process for the preparation of serinol and of serinol derivatives, and (1985-03-05),

Eprova Ag is a Swiss-based company specializing in the development and production of innovative feed additives for livestock. With a focus on sustainability and animal welfare, Eprova Ag provides high-quality solutions for improving the health and performance of animals in the agriculture industry.

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USPTO Data Jan 1 1976 - Sep 15 2026

16 Patents

#25 in Schaffhausen

#757 in Switzerland

#37,723 in the World

Schaffhausen, Switzerland

Eprova Ag

Forward Citations = 164

21 inventors:

Martin Ulmann (11 out of 20 patents)

Josef Conti (7 out of 9 patents)

Rudolf Moser (6 out of 46 patents)

4. Hans R Muller (6 out of 9 patents)

5. Hans R Mueller (4 out of 4 patents)

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