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Tampere, Finland

Tamglass Ltd. Oy

USPTO Granted Patents = 16

% Expired Patents = 43.8

CIPO Patents = 1

Forward Citations = 52

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22 inventors (with patents filed for the assignee):

Erkki Yli-Vakkuri (3 out of 3 patents)

Esko O Lehto (2 out of 16 patents)

Jorma K Vitkala (2 out of 4 patents)

4. Toivo Janhunen (1 out of 4 patents)

5. Jari Ala-Savikota (1 out of 1 patent)

6. Erkki Hirvonen (1 out of 1 patent)

7. Mauri Leponen (1 out of 2 patents)

8. Tarmo Pesonen (1 out of 1 patent)

9. Pauli Reunamäki (1 out of 1 patent)

10. Lawrence Betz (1 out of 1 patent)

11. Ernie Thomas (1 out of 1 patent)

12. Heikki Koivisto (1 out of 1 patent)

13. Pentti Keinonen (1 out of 1 patent)

14. Kenneth Friedel (1 out of 3 patents)

15. Markku Lehto (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 7414223 - Method and apparatus for monitoring safety glass production or controlling a treatment process (2008-08-19),

2. 7389655 - Apparatus for bending and tempering glass panels (2008-06-24),

3. 7308806 - Air-exhausting lehr for laminated glass sheets (2007-12-18),

4. 7225644 - Bendable support structure in a bending section (2007-06-05),

5. 7155939 - Apparatus for bending glass panels (2007-01-02),

6. 7127918 - Method and apparatus for heating glass sheets in preparation of tempering (2006-10-31),

7. 6983624 - Apparatus for bending glass panels (2006-01-10),

8. 6901773 - Semi-convective forced air system having amplified air nozzles for heating low 'e' coated glass (2005-06-07),

9. 6845633 - Method and apparatus for heating glass panels in a tempering furnace equipped with rollers (2005-01-25),

10. 6595027 - Method and apparatus for supporting the middle section of a glass panel to be bent in a mold (2003-07-22),

11. 6410887 - Method for heating LowE glass panels in a tempering furnace (2002-06-25),

12. 6389847 - Air output unit in connection with a tempering station for glass panels, and method for manufacturing the same (2002-05-21),

13. 6357262 - Apparatus and method for reducing scratching when bending glass sheets (2002-03-19),

14. 6067820 - Process for the heat-soak treatment of tempered glass panels (2000-05-30),

15. 6064040 - Method and apparatus for the localization of heating in a tempering (2000-05-16),

Company Overview

Tamglass Ltd. Oy is a Finnish company specializing in the development and manufacturing of advanced glass processing machinery. With a focus on innovation, Tamglass provides solutions for the architectural, automotive, and solar industries, enhancing the performance and aesthetics of glass products. The company is recognized for its commitment to quality and precision, leveraging cutting-edge technology to meet the evolving needs of its global clientele. Its expertise in glass processing positions it as a key player in the industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

16 Patents

#17 in Tampere

#201 in Finland

#37,868 in the World

Tampere, Finland

Tamglass Ltd. Oy

Forward Citations = 52

22 inventors:

Erkki Yli-Vakkuri (3 out of 3 patents)

Esko O Lehto (2 out of 16 patents)

Jorma K Vitkala (2 out of 4 patents)

4. Toivo Janhunen (1 out of 4 patents)

5. Jari Ala-Savikota (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tamglass Ltd. Oy. Retrieved from https://idiyas.com/company/tamglass-ltd-oy

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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