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For the Inventor, By the Inventor

Asslar, Germany

Pfeiffer Vacuum Gmbh


USPTO Granted Patents = 96

% Expired Patents = 36.5


Trademarks = 20

Forward Citations = 215

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107 inventors (with patents filed for the assignee):

goldMedal Armin Conrad (18 out of 22 patents)

silverMedal Heinrich Lotz (9 out of 13 patents)

bronzeMedal 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.  Nicolas Varennes (3 out of 3 patents)


Core Competencies:
Turbomolecular Pump
Leak Detection
Vacuum System
Contamination Measurement
Dry Vacuum Pump
Sniffer Probe
Pressure Measurement
Gas Friction Pump
Pumping Unit
Safety Valve
Rough Vacuum Pump
Ionizing Pump Stage

96 patents:

1. 12584487 - Turbomolecular vacuum pump and methods for manufacturing a rotor (2026-03-24),
2. 12496563 - Vacuum line and method for controlling a vacuum line to reduce explosion potential via injection of diluent gas to lower flammable gas concentration (2025-12-16),
3. 12410805 - Turbomolecular vacuum pump and associated method (2025-09-09),
4. 12216031 - Station and method for measuring airborne molecular contamination (2025-02-04),
5. 12110907 - Heating device and vacuum pump (2024-10-08),
6. 12066355 - Sniffer probe and leak detector (2024-08-20),
7. 11953484 - Method for setting an airborne molecular contamination measurement station, and measurement station (2024-04-09),
8. 11815096 - Pump unit (2023-11-14),
9. 11773849 - Vacuum pump, scroll pump, and manufacturing method for such (2023-10-03),
10. 11768134 - Station and method for measuring airborne molecular contamination (2023-09-26),
11. 11725659 - Dry-type primary vacuum pump and method for controlling the injection of a purging gas (2023-08-15),
12. 11668305 - Vacuum device (2023-06-06),
13. 11585342 - Primary vacuum pump of dry type and method for controlling the injection of a purge gas (2023-02-21),
14. 11542935 - Gas recirculation device and system having such a device (2023-01-03),
15. 11519811 - Leak detector and leak detection method for leak-testing objects (2022-12-06),
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.

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USPTO Data Jan 1 1976 - Sep 22 2026

Pfeiffer Vacuum Gmbh
96 Patents

#1 in Asslar

#613 in Germany

#8,036 in the World

Asslar, DE
Asslar, Germany

Pfeiffer Vacuum Gmbh

Forward Citations = 215

107 inventors:

goldMedal Armin Conrad (18 out of 22 patents)

silverMedal Heinrich Lotz (9 out of 13 patents)

bronzeMedal Peter Fahrenbach (6 out of 6 patents)

4.  Jan Hofmann (5 out of 7 patents)

5.  Julien Bounouar (5 out of 11 patents)

Please report any incorrect information to [email protected]
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