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Leybold Aktiengesellschaft

USPTO Granted Patents = 393

Trademarks = 10

Forward Citations = 5,420

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392 inventors (with patents filed for the assignee):

Joachim Szczyrbowski (24 out of 43 patents)

Klaus Hartig (18 out of 24 patents)

Roland Gesche (15 out of 23 patents)

4. Jaroslav Zejda (15 out of 19 patents)

5. Michael Scherer (14 out of 24 patents)

6. Michael Geisler (13 out of 18 patents)

7. Rudolf Latz (12 out of 12 patents)

8. Hanns-Peter Berges (11 out of 17 patents)

9. Anton Dietrich (11 out of 16 patents)

10. Michael Jung (11 out of 12 patents)

11. Thomas Krug (10 out of 10 patents)

12. Eggo Sichmann (9 out of 18 patents)

13. Peter Mahler (9 out of 14 patents)

14. Hans-Peter Kabelitz (9 out of 18 patents)

15. Rainer Gegenwart (9 out of 9 patents)

Core Competencies:

Vacuum Pump

Leak Detector

Cryogenic Cooling

Coating Apparatus

Friction Pump

Sputtering System

Plasma Treatment

Gas Ballast

Sealing System

Measurement Amplifier

Substrate Treatment

Magnetic Bearing

393 patents: Sort by Forward Citations

1. 6019581 - Friction vacuum pump with cooling arrangement (2000-02-01),

2. 5975857 - Process for operating a dry-compression vacuum pump as well as a (1999-11-02),

3. 5961124 - Sealing system for a vertically disposed shaft (1999-10-05),

4. 5923172 - Penning type gauge head with ignition aid (1999-07-13),

5. 5907092 - Countercurrent sniffing leak detector (1999-05-25),

6. 5900537 - Test gas leakage detector (1999-05-04),

7. 5880357 - Leak detector with vacuum pumps and operating process for same (1999-03-09),

8. 5878580 - Method of operating a cryogenic cooling device, and a cryogenic cooling (1999-03-09),

9. 5871338 - Vacuum pump with a gas ballast device (1999-02-16),

10. 5829794 - Vacuumtight connection (1998-11-03),

11. 5822842 - Method for masking a disk shaped substrate (1998-10-20),

12. 5789670 - Rain sensor (1998-08-04),

13. 5786529 - Search gas detector with vacuum pump and process for operating such a (1998-07-28),

14. 5770956 - Measurement amplifier (1998-06-23),

15. 5766348 - Rotating head for crystal pulling systems for carrying out the (1998-06-16),

Leybold Aktiengesellschaft, headquartered in Hanau, Germany, specializes in vacuum technology, providing innovative solutions for various industrial applications. The company develops and manufactures a range of products, including vacuum pumps, leak detectors, and cryogenic cooling systems. Leybold is recognized for its expertise in coating apparatus, sputtering systems, and plasma treatment technologies, catering to sectors such as semiconductor manufacturing, materials science, and surface engineering. Its commitment to advancing vacuum technology positions it as a key player in the global market.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Leybold Aktiengesellschaft

393 Patents

#2 in Hanau

#143 in Germany

#2,357 in the World

Leybold Aktiengesellschaft

Forward Citations = 5,420

392 inventors:

Joachim Szczyrbowski (24 out of 43 patents)

Klaus Hartig (18 out of 24 patents)

Roland Gesche (15 out of 23 patents)

4. Jaroslav Zejda (15 out of 19 patents)

5. Michael Scherer (14 out of 24 patents)

Please report any incorrect information to [email protected]

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