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Evva-werk Spezialerzeugung Von Zylinder- Und Sicherheitsschlossern

USPTO Granted Patents = 15

Forward Citations = 166

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8 inventors (with patents filed for the assignee):

Kurt Prunbauer (11 out of 17 patents)

Erich Csapo (4 out of 5 patents)

Adalbert Paar (2 out of 4 patents)

4. Harald Neumayer (1 out of 1 patent)

5. Roland Krewenka (1 out of 1 patent)

6. Kurt Prunbauer (1 out of 1 patent)

7. Hans Lanik (1 out of 2 patents)

8. Alfred Burger (1 out of 2 patents)

15 patents: Sort by Forward Citations

1. 5797287 - Flat key (1998-08-25),

2. 5699686 - Device for electromagnetically securing a lock barrel (1997-12-23),

3. 4977767 - High-security flat key and lock therefor (1990-12-18),

4. 4686841 - Rotatable magnetic tumbler and magnetic lock containing same (1987-08-18),

5. 4669284 - Lock cylinder with rotatable magnetic tumblers (1987-06-02),

6. 4665726 - Lock cylinder with rotatable magnetic tumblers (1987-05-19),

7. 4612787 - Arrangement for cylinder locks (1986-09-23),

8. 4516416 - Locking device and key (1985-05-14),

9. 4434636 - Lock having a cylinder core and a housing (1984-03-06),

10. 4310820 - Magnetizing device (1982-01-12),

11. 4294091 - Control device for cylinder locks (1981-10-13),

12. 4250725 - Control device (1981-02-17),

13. 4229958 - Control device particularly for use in a lock (1980-10-28),

14. 4168617 - Lock system (1979-09-25),

15. 4084416 - Magnetic-type lock (1978-04-18),

EVVA is a leading manufacturer of high-quality cylinders and security locks. With a focus on innovation and customer satisfaction, EVVA-Werk Spezialerzeugung von Zylinder- und Sicherheitsschlössern offers a wide range of products for both residential and commercial applications. Their advanced security solutions are designed to protect properties and provide peace of mind to their customers.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

15 Patents

#81 in undefined, undefined

#181 in

#20,409 in US

#38,699 in the World

Evva-werk Spezialerzeugung Von Zylinder- Und Sicherheitsschlossern

Forward Citations = 166

8 inventors:

Kurt Prunbauer (11 out of 17 patents)

Erich Csapo (4 out of 5 patents)

Adalbert Paar (2 out of 4 patents)

4. Harald Neumayer (1 out of 1 patent)

5. Roland Krewenka (1 out of 1 patent)

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