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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, headquartered in Asslar, Germany, is a leading provider of vacuum technology solutions. The company specializes in the development and manufacturing of advanced vacuum systems, including turbomolecular pumps, dry vacuum pumps, and leak detection systems. Its expertise extends to contamination measurement and pressure measurement technologies, catering to a diverse range of industries. Pfeiffer Vacuum is committed to innovation and quality, ensuring reliable performance in various applications where vacuum technology is critical.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Pfeiffer Vacuum Gmbh
96 Patents

#1 in Asslar

#615 in Germany

#8,040 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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