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For the Inventor, By the Inventor

Helsinki, Finland

Abb Stromberg Drives Oy


USPTO Granted Patents = 10

Forward Citations = 52

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14 inventors (with patents filed for the assignee):

goldMedal Samuli Heikkilä (2 out of 14 patents)

silverMedal Pasi Pohjalainen (2 out of 3 patents)

bronzeMedal Erkki Miettinen (1 out of 23 patents)

4.  Matti Mard (1 out of 1 patent)

5.  Vesa Vauhkonen (1 out of 1 patent)

6.  Olavi Kangasaho (1 out of 1 patent)

7.  Ilpo Ruohonen (1 out of 1 patent)

8.  Anders Hindsberg (1 out of 1 patent)

9.  Martti Suomela (1 out of 1 patent)

10.  Matti Lounila (1 out of 1 patent)

11.  Kai Johansson (1 out of 1 patent)

12.  Juha Kokkonen (1 out of 1 patent)

13.  Pekka Tiitinen (1 out of 2 patents)

14.  Kari Saarinen (1 out of 1 patent)


10 patents:

1. 5521483 - Method of determining a residual flux of an inverter-supplied squirrel (1996-05-28),
2. 5491340 - Method and apparatus for determination of refiner mechanical pulp (1996-02-13),
3. 5371458 - Method for determining the stator flux of an asynchronous machine (1994-12-06),
4. 5309086 - Current measuring transducer operating on the compensation principle (1994-05-03),
5. 5301085 - Control circuit for a semiconductor switch (1994-04-05),
6. 5198742 - Method of preventing the stalling of an asynchronous machine (1993-03-30),
7. 5162727 - Method and apparatus of determining the stator flux estimate of an (1992-11-10),
8. 5149997 - Fan for an electrically operated machine (1992-09-22),
9. 4920306 - Method for controlling the torque of a synchronous machine supplied by a (1990-04-24),
10. 4918367 - Method for controlling the torque of an ac motor (1990-04-17),
Company Overview
ABB Stromberg Drives Oy, based in Helsinki, specializes in advanced drive technology and automation solutions. The company focuses on developing innovative systems that enhance energy efficiency and performance across various industrial applications. With a strong emphasis on research and development, ABB Stromberg Drives Oy contributes to the evolution of electric drive systems, supporting industries in optimizing their operations and reducing environmental impact. Its expertise spans multiple sectors, including manufacturing and transportation.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

10 Patents

#88 in Helsinki

#294 in Finland

#56,092 in the World

Helsinki, FI
Helsinki, Finland

Abb Stromberg Drives Oy

Forward Citations = 52

14 inventors:

goldMedal Samuli Heikkilä (2 out of 14 patents)

silverMedal Pasi Pohjalainen (2 out of 3 patents)

bronzeMedal Erkki Miettinen (1 out of 23 patents)

4.  Matti Mard (1 out of 1 patent)

5.  Vesa Vauhkonen (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Abb Stromberg Drives Oy. Retrieved from https://idiyas.com/company/abb-stromberg-drives-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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