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For the Inventor, By the Inventor

Hallstahammar, Sweden

Bulten-Kanthal Ab


USPTO Granted Patents = 20

Forward Citations = 146

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25 inventors (with patents filed for the assignee):

goldMedal Rolf Bergstrom (3 out of 5 patents)

silverMedal Stig Svensson (3 out of 3 patents)

bronzeMedal Nils G Schrewelius (2 out of 4 patents)

4.  Carl-Henning Camitz (2 out of 2 patents)

5.  Stig Lindgren (2 out of 2 patents)

6.  Nils Lindskog (1 out of 3 patents)

7.  Bengt Hjortsberg (1 out of 2 patents)

8.  Sixten H Lejdegard (1 out of 7 patents)

9.  Gosta Ohrn (1 out of 1 patent)

10.  Enar Hogfors (1 out of 1 patent)

11.  Venanzio Bizzari (1 out of 1 patent)

12.  Sigge Johansson (1 out of 1 patent)

13.  Olof L Thorssell (1 out of 1 patent)

14.  Carl G Dock (1 out of 1 patent)

15.  Bengt Magnusson (1 out of 2 patents)


20 patents:

1. 4714659 - Thermal protective shield (1987-12-22),
2. 4604754 - Suspension device for resistor elements in furnaces (1986-08-05),
3. 4429019 - Heat-resistant machine component (1984-01-31),
4. 4411936 - Sprayed alloy layer and method of making same (1983-10-25),
5. 4408747 - Device and method for collecting chains or the like (1983-10-11),
6. 4392052 - Device for carrying electrical resistance elements (1983-07-05),
7. 4376245 - Electrical heating element (1983-03-08),
8. 4336412 - Heat treatment furnace (1982-06-22),
9. 4329569 - Resilient snap-on electric heating jacket for tubular objects (1982-05-11),
10. D259540 - Safety hook (1981-06-16),
11. 4263470 - Holding device for electrical resistance elements in furnaces (1981-04-21),
12. 4209978 - Method of bending a link blank into a chain link and a bending machine (1980-07-01),
13. 4203323 - Flowmetering method and device (1980-05-20),
14. 4185454 - Link stud inserter (1980-01-29),
15. 4182189 - Method and means for attaining a predetermined compressive stress (1980-01-08),
Company Overview
Bulten-Kanthal Ab, headquartered in Hallstahammar, Sweden, specializes in advanced materials and heating technology. The company is known for its innovative solutions in industrial heating, offering a range of products that enhance efficiency and performance in various applications. With a strong focus on research and development, Bulten-Kanthal Ab is dedicated to advancing technologies in sectors such as energy, manufacturing, and automotive, contributing to sustainable practices and improved operational outcomes.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

20 Patents

#2 in Hallstahammar

#324 in Sweden

#31,295 in the World

Hallstahammar, SE
Hallstahammar, Sweden

Bulten-Kanthal Ab

Forward Citations = 146

25 inventors:

goldMedal Rolf Bergstrom (3 out of 5 patents)

silverMedal Stig Svensson (3 out of 3 patents)

bronzeMedal Nils G Schrewelius (2 out of 4 patents)

4.  Carl-Henning Camitz (2 out of 2 patents)

5.  Stig Lindgren (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Bulten-Kanthal Ab. Retrieved from https://idiyas.com/company/bulten-kanthal-ab

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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