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Tampere, Finland

Oy Tampella Ab

USPTO Granted Patents = 160

CIPO Patents = 1

Trademarks = 1

Forward Citations = 1,257

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142 inventors (with patents filed for the assignee):

Pekka M Salmi (14 out of 14 patents)

Jukka A Lehtinen (9 out of 20 patents)

Jarmo Leppanen (9 out of 9 patents)

4. Jouko Hautala (8 out of 25 patents)

5. Pekka O Haikkala (7 out of 8 patents)

6. Jarmo Heinonen (6 out of 10 patents)

7. Pekka M Salmi (6 out of 6 patents)

8. Hannu I Paasonen (6 out of 11 patents)

9. Onni Issakainen (6 out of 6 patents)

10. Mauri Rantala (5 out of 5 patents)

11. Pekka Majaniemi (5 out of 6 patents)

12. Pauli Rajakallio (4 out of 5 patents)

13. Paavo Rautakorpi (4 out of 11 patents)

14. Timo Kenakkala (4 out of 4 patents)

15. Pentti Janka (4 out of 7 patents)

Core Competencies:

Pulp Screening

Flue Gas Treatment

Paper Drying

Rock Drilling

Heat Recovery

Sulfur Compounds

Drilling Apparatus

Combustion Control

Chemical Recovery

Web Guiding

Press Section

Dewatering

160 patents: Sort by Forward Citations

1. 5238666 - Process for separating sulfur compounds from flue gases (1993-08-24),

2. 5230773 - Process for the recovery of heat and chemicals from spent liquor (1993-07-27),

3. 5175436 - Method of producing high-energy electron curtains with high performance (1992-12-29),

4. 5145072 - Method for screening and treating pulp (1992-09-08),

5. 5139097 - Rock drilling apparatus (1992-08-18),

6. 5129470 - Drill hole filling method and apparatus (1992-07-14),

7. 5128030 - Device for separating solids from suspension (1992-07-07),

8. 5125584 - Method and apparatus for removing impurities from paper pulp in pulpers (1992-06-30),

9. 5124000 - Method of and an arrangement for passing a fibre web from a wire through (1992-06-23),

10. 5121802 - Method and arrangement for controlling a rock drilling apparatus (1992-06-16),

11. 5112441 - Process for the recovery of heat and chemicals from spent liquor (1992-05-12),

12. 5111999 - Arrangement for fastening the grindstone of a pulp grinder to a rotary (1992-05-12),

13. 5102532 - Method for controlling pressurized screening devices and pressurized (1992-04-07),

14. 5086571 - Device in the drying section of a paper machine (1992-02-11),

15. 5084985 - Drying section in a paper or board machine and method for guiding a web (1992-02-04),

Company Overview

Oy Tampella Ab, based in Tampere, Finland, specializes in advanced pulp and paper technology solutions. The company focuses on key areas such as pulp screening, flue gas treatment, and paper drying, contributing to enhanced efficiency and sustainability in the industry. Additionally, Tampella is involved in rock drilling and heat recovery technologies, addressing critical needs in combustion control and sulfur compound management. With a commitment to innovation, the company plays a vital role in the development of environmentally friendly processes within the pulp and paper sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

160 Patents

#2 in Tampere

#31 in Finland

#5,157 in the World

Tampere, Finland

Oy Tampella Ab

Forward Citations = 1,257

142 inventors:

Pekka M Salmi (14 out of 14 patents)

Jukka A Lehtinen (9 out of 20 patents)

Jarmo Leppanen (9 out of 9 patents)

4. Jouko Hautala (8 out of 25 patents)

5. Pekka O Haikkala (7 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Oy Tampella Ab. Retrieved from https://idiyas.com/company/oy-tampella-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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