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For the Inventor, By the Inventor

Sundsvall, Sweden

Sca Development Aktiebolag


USPTO Granted Patents = 19


Forward Citations = 179

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30 inventors (with patents filed for the assignee):

goldMedal Per V Peterson (5 out of 7 patents)

silverMedal Hans E Hoglund (3 out of 9 patents)

bronzeMedal Alf Hugo Karlsson (2 out of 3 patents)

4.  Goran E Annergren (1 out of 4 patents)

5.  Axel Henning Sjobom (1 out of 1 patent)

6.  Viking Per Peterson (1 out of 1 patent)

7.  Karl Gunnar Bohlin (1 out of 1 patent)

8.  Carl-Erik Gustafsson (1 out of 1 patent)

9.  Karl Rune Eriksson (1 out of 1 patent)

10.  Bengt A Wennerblom (1 out of 1 patent)

11.  Rune A Wappling (1 out of 1 patent)

12.  Karl A Gustafson (1 out of 1 patent)

13.  Gustaf R Hellerqvist, Deceased (1 out of 1 patent)

14.  Ingeborg H Hellerqvist, Legal Representative (1 out of 1 patent)

15.  Anna-Britta Wiberg, Legal Representative (1 out of 1 patent)


19 patents:

1. 4635864 - Refiner disc segment (1987-01-13),
2. 4451332 - Method for delignification of ligno-cellulose containing fiber material (1984-05-29),
3. 4357208 - Method of making pulp (1982-11-02),
4. 4356213 - Chip treatment (1982-10-26),
5. 4329199 - Process for digesting and bleaching cellulosic material with reduced (1982-05-11),
6. 4294412 - Method and apparatus for controlling wood pulp grinding machines (1981-10-13),
7. 4256877 - Method of manufacturing cellulose derivative (1981-03-17),
8. 4240260 - Steam treating method and system (1980-12-23),
9. 4221631 - Method and apparatus for refining fiberous material (1980-09-09),
10. 4194299 - Condensate discharging device (1980-03-25),
11. 4188261 - Method of improving the homogeneity of lignocellulose containing material (1980-02-12),
12. 4176619 - Paper surface treating device (1979-12-04),
13. 4128669 - Method of surface treating paper webs (1978-12-05),
14. 4039154 - Refining element (1977-08-02),
15. 4037792 - Continuously refining raw fibrous material to produce mechanical refiner (1977-07-26),
Company Overview
Sca Development Aktiebolag, based in Sundsvall, Sweden, specializes in the development and manufacturing of advanced materials and solutions tailored for various industries. The company focuses on innovative technologies that enhance performance and sustainability in applications ranging from construction to packaging. With a commitment to research and development, Sca Development aims to lead in creating environmentally friendly products that meet the evolving needs of its global clientele.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

19 Patents

#3 in Sundsvall

#343 in Sweden

#32,623 in the World

Sundsvall, SE
Sundsvall, Sweden

Sca Development Aktiebolag

Forward Citations = 179

30 inventors:

goldMedal Per V Peterson (5 out of 7 patents)

silverMedal Hans E Hoglund (3 out of 9 patents)

bronzeMedal Alf Hugo Karlsson (2 out of 3 patents)

4.  Goran E Annergren (1 out of 4 patents)

5.  Axel Henning Sjobom (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sca Development Aktiebolag. Retrieved from https://idiyas.com/company/sca-development-aktiebolag

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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