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Flawil, Switzerland

Buchi Labortechnik Ag

USPTO Granted Patents = 14

EPO Patents = 7

Trademarks = 2

Forward Citations = 86

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11 inventors (with patents filed for the assignee):

Arthur Spring (6 out of 8 patents)

Ruedi August Müller (3 out of 3 patents)

Marco Sanwald (2 out of 2 patents)

4. Rafael Caviezel (2 out of 2 patents)

5. Erwin Bossart (1 out of 7 patents)

6. Angelo Talamona (1 out of 1 patent)

7. Roman Bossart (1 out of 1 patent)

8. Jörg Grabinski (1 out of 1 patent)

9. Richard Widmer (1 out of 1 patent)

10. Rudolf Solenthaler (1 out of 1 patent)

11. Stefan Hungerbuhler (1 out of 1 patent)

12. Martin Uhland (1 patent)

13. Thomas Schneider (0 patent)

14. Matthias Wagner (0 patent)

15. Thomas Schneider (0 patent)

14 patents: Sort by Forward Citations

1. D941977 - Rotary evaporator (2022-01-25),

2. D940290 - Rotary evaporator (2022-01-04),

3. D748232 - Rotary evaporator (2016-01-26),

4. 6896011 - Device and process for filling a column with a filler material (2005-05-24),

5. 6709025 - Vapor lead-through system for a rotary evaporator, and a rotary evaporator (2004-03-23),

6. 6480795 - Automatic calibration method (2002-11-12),

7. 6276729 - Connection element for connecting neighboring connection sections on tubes and/or container openings, in particular on laboratory apparatus (2001-08-21),

8. 5876190 - Vacuum membrane pump and a head portion for a vacuum membrane pump (1999-03-02),

9. 5776317 - Extractor for soxhlet solid-liquid extraction (1998-07-07),

10. 5759356 - Evaporator flask for a rotary evaporator (1998-06-02),

11. D387176 - Evaporator flask for a rotary evaporator (1997-12-02),

12. 5665602 - Method for the determination of the fat content of samples, preferably (1997-09-09),

13. 5580007 - Device and method for reducing in size and mixing of material (1996-12-03),

14. 5536374 - Evaporator flask for a rotary evaporator (1996-07-16),

Buchi Labortechnik Ag is a leading global provider of laboratory equipment and solutions for the pharmaceutical, chemical, food and feed, and academic industries. With a focus on quality, innovation, and customer satisfaction, Buchi offers a wide range of products including rotary evaporators, freeze dryers, and chromatography systems. Founded in 1939, the company is headquartered in Switzerland and has a strong presence in over 120 countries worldwide.

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USPTO Data Jan 1 1976 - Dec 16 2025

14 Patents

#1 in Flawil

#813 in Switzerland

#40,906 in the World

Flawil, Switzerland

Buchi Labortechnik Ag

Forward Citations = 86

11 inventors:

Arthur Spring (6 out of 8 patents)

Ruedi August Müller (3 out of 3 patents)

Marco Sanwald (2 out of 2 patents)

4. Rafael Caviezel (2 out of 2 patents)

5. Erwin Bossart (1 out of 7 patents)

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