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For the Inventor, By the Inventor

Bastad, Sweden

Lindab Ab


USPTO Granted Patents = 48

% Expired Patents = 8.3


Trademarks = 1

Forward Citations = 1,227

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32 inventors (with patents filed for the assignee):

goldMedal Kenneth Lennartsson (24 out of 32 patents)

silverMedal Carl-Gustaf Sonden (14 out of 14 patents)

bronzeMedal Lars-Åke Mattsson (8 out of 8 patents)

4.  Carl-Gustaf Sondén (7 out of 7 patents)

5.  Sten Högman (7 out of 7 patents)

6.  Pontus Andersson (5 out of 5 patents)

7.  Werner J Andresen (5 out of 5 patents)

8.  Teuvo Ranta (4 out of 4 patents)

9.  Kent Hultberg (4 out of 4 patents)

10.  Wilhelmus P Castricum (3 out of 14 patents)

11.  Göran Hultmark (2 out of 2 patents)

12.  Robert Salomonsson (2 out of 2 patents)

13.  Anders Vorre (2 out of 2 patents)

14.  Hans Schmidt-Hansen (2 out of 3 patents)

15.  Wilhelmus P H Castricum (2 out of 4 patents)


Core Competencies:
Ventilation
Flow Measurement
Coupling Ring
Duct System
Double-Walled Structure
Pipe Cutter
Sealing Means
Helically-Wound Tubing
Spiral Pipe
Connector
Cladding Element
Rivet

48 patents:

1. 10663191 - Damper for ventilation systems (2020-05-26),
2. 10443887 - Ventilation device with varying air velocity (2019-10-15),
3. 9927271 - System for identifying a sensor and measuring flow in a flow duct (2018-03-27),
4. 9074790 - Plenum box (2015-07-07),
5. D609254 - Cutter (2010-02-02),
6. D513072 - Part in a ventilation system (2005-12-20),
7. 6758502 - Coupling ring for ventilation ducts, and method of connecting ventilation ducts (2004-07-06),
8. 6655182 - Apparatus and method for reshaping tubes (2003-12-02),
9. D475781 - Coupling ring for ventilation ducts (2003-06-11),
10. 6543575 - Double-walled structure and connection arrangement (2003-04-08),
11. 6466834 - Method and apparatus for conversion of ventilation systems represented in computer-readable form (2002-10-15),
12. 6453710 - Method and apparatus for manufacturing a helically-wound lock-seam tube having air nozzles (2002-09-24),
13. D461887 - Coupling ring for ventilation ducts (2002-08-21),
14. 6431609 - Pipe connection for ventilating duct system (2002-08-13),
15. D456072 - Coupling ring for ventilation ducts (2002-04-24),
Lindab Ab, headquartered in Bastad, Sweden, specializes in the development and manufacturing of advanced ventilation systems and related components. The company focuses on innovative solutions for air distribution, including flow measurement devices, plenum boxes, coupling rings, and sealing rings. With a commitment to enhancing indoor air quality and energy efficiency, Lindab also offers products like double-walled structures and spiral pipe cutting technologies, catering to diverse applications in the HVAC industry.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

48 Patents

#1 in Bastad

#142 in Sweden

#14,536 in the World

Bastad, SE
Bastad, Sweden

Lindab Ab

Forward Citations = 1,227

32 inventors:

goldMedal Kenneth Lennartsson (24 out of 32 patents)

silverMedal Carl-Gustaf Sonden (14 out of 14 patents)

bronzeMedal Lars-Åke Mattsson (8 out of 8 patents)

4.  Carl-Gustaf Sondén (7 out of 7 patents)

5.  Sten Högman (7 out of 7 patents)

Please report any incorrect information to [email protected]
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