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Hamburg, Germany

Lenhardt Maschinenbau Gmbh

USPTO Granted Patents = 21

% Expired Patents = 4.8

Trademarks = 1

Forward Citations = 289

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6 inventors (with patents filed for the assignee):

Karl Lenhardt (19 out of 34 patents)

Uwe Bogner (4 out of 4 patents)

Peter Schuler (1 out of 18 patents)

4. Rudolf Bernhardt (1 out of 1 patent)

5. Heinz Schubert (1 out of 1 patent)

6. Manfred Weinbrecht (1 out of 1 patent)

21 patents: Sort by Forward Citations

1. 6609611 - Device for conveying insulating glass panes (2003-08-26),

2. 6368408 - Device for coating the flanks of spacer frames for insulating glass panes (2002-04-09),

3. 6234355 - Machine for filling the edge joints of insulating glass panes with a sealing compound consisting of two constituents (2001-05-22),

4. 5961759 - Method and apparatus for applying a plastic spacer onto a glass panel (1999-10-05),

5. 5762739 - Process and apparatus for assembling insulating glass panes which are (1998-06-09),

6. 5462199 - Apparatus for discharging pasty compressible substances of high viscosity (1995-10-31),

7. 5366574 - Process for assembling insulating glass panes which are filled with a (1994-11-22),

8. 5350469 - Process and apparatus for assembling insulating glass panes filled with (1994-09-27),

9. 5332080 - Apparatus for conveying insulating glass panes (1994-07-26),

10. 5319186 - Apparatus for controlling the movement of a tool along the edge of glass (1994-06-07),

11. 5051145 - Apparatus for a slipless conveyance of two plates (1991-09-24),

12. 5027941 - Apparatus for conveying glass plates standing on edge (1991-07-02),

13. 4911779 - Apparatus for a slipless conveyance of two plates (1990-03-27),

14. 4866832 - Process and apparatus for closing one end of a tubular bar (1989-09-19),

15. 4826547 - Process for sealing space between panes of insulating glass and tool (1989-05-02),

Company Overview

Lenhardt Maschinenbau GmbH, based in Hamburg, specializes in the development and manufacturing of advanced machinery and equipment for various industrial applications. The company focuses on precision engineering and innovative solutions, catering to sectors such as automotive, aerospace, and general manufacturing. With a commitment to quality and technological advancement, Lenhardt plays a significant role in enhancing production processes and efficiency, serving clients both locally and internationally.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

21 Patents

#50 in Hamburg

#2,133 in Germany

#30,001 in the World

Hamburg, Germany

Lenhardt Maschinenbau Gmbh

Forward Citations = 289

6 inventors:

Karl Lenhardt (19 out of 34 patents)

Uwe Bogner (4 out of 4 patents)

Peter Schuler (1 out of 18 patents)

4. Rudolf Bernhardt (1 out of 1 patent)

5. Heinz Schubert (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Lenhardt Maschinenbau Gmbh. Retrieved from https://idiyas.com/company/lenhardt-maschinenbau

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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