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Asslar, Germany

Pfeiffer Vacuum Gmbh

USPTO Granted Patents = 94

EPO Patents = 370

Trademarks = 40

Forward Citations = 208

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253 inventors (with patents filed for the assignee):

Armin Conrad (18 out of 22 patents)

Heinrich Lotz (9 out of 13 patents)

Peter Fahrenbach (6 out of 6 patents)

4. Jan Hofmann (5 out of 7 patents)

5. Julien Bounouar (5 out of 11 patents)

6. Tobias Stoll (5 out of 6 patents)

7. Pascal Jourdan (4 out of 5 patents)

8. Cyrille Nomine (4 out of 8 patents)

9. Juergen Wagner (4 out of 4 patents)

10. Stefan Zabeschek (4 out of 4 patents)

11. Wolfgang Eberl (4 out of 4 patents)

12. Yannick Grenier (3 out of 3 patents)

13. Laurent Ducimetiere (3 out of 4 patents)

14. Robert Watz (3 out of 3 patents)

15. Mirko Mekota (3 out of 3 patents)

Core Competencies:

Turbomolecular Vacuum Pump

Airborne Molecular Contamination

Leak Detection

Dry Vacuum Pump

Pumping Unit

Vacuum System

Ionizing Pump Stage

Sniffer Probe

Gas Recirculation Device

Pressure Measurement

Sealing Tightness

Rotary Vane Pump

94 patents: Sort by Forward Citations

1. 12410805 - Turbomolecular vacuum pump and associated method (2025-09-09),

2. 12216031 - Station and method for measuring airborne molecular contamination (2025-02-04),

3. 12110907 - Heating device and vacuum pump (2024-10-08),

4. 12066355 - Sniffer probe and leak detector (2024-08-20),

5. 11953484 - Method for setting an airborne molecular contamination measurement station, and measurement station (2024-04-09),

6. 11815096 - Pump unit (2023-11-14),

7. 11773849 - Vacuum pump, scroll pump, and manufacturing method for such (2023-10-03),

8. 11768134 - Station and method for measuring airborne molecular contamination (2023-09-26),

9. 11725659 - Dry-type primary vacuum pump and method for controlling the injection of a purging gas (2023-08-15),

10. 11668305 - Vacuum device (2023-06-06),

11. 11585342 - Primary vacuum pump of dry type and method for controlling the injection of a purge gas (2023-02-21),

12. 11542935 - Gas recirculation device and system having such a device (2023-01-03),

13. 11519811 - Leak detector and leak detection method for leak-testing objects (2022-12-06),

14. 11499556 - Dry vacuum pump with a pressure variation reducing expansion device between a pumping side volume and an oil sump (2022-11-15),

15. 11493045 - Dry vacuum pump with at least one sealing device with a deflector (2022-11-08),

Pfeiffer Vacuum GmbH is a leading global provider of vacuum solutions. The company offers a comprehensive portfolio of vacuum technology products, including pumps, measurement and analysis devices, leak detection systems, and vacuum chambers. With a strong focus on innovation, quality, and customer satisfaction, Pfeiffer Vacuum serves a wide range of industries, including semiconductor, research and development, coating and optics, and industrial applications.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

94 Patents

#1 in Asslar

#656 in Germany

#7,948 in the World

Asslar, Germany

Pfeiffer Vacuum Gmbh

Forward Citations = 208

253 inventors:

Armin Conrad (18 out of 22 patents)

Heinrich Lotz (9 out of 13 patents)

Peter Fahrenbach (6 out of 6 patents)

4. Jan Hofmann (5 out of 7 patents)

5. Julien Bounouar (5 out of 11 patents)

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