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For the Inventor, By the Inventor

Helsinki, Finland

Nexstim Oy

USPTO Granted Patents = 12

% Expired Patents = 25.0


Trademarks = 3

Forward Citations = 535

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10 inventors (with patents filed for the assignee):

goldMedal Jarmo Ruohonen (6 out of 11 patents)

silverMedal Matti Aho (5 out of 5 patents)

bronzeMedal Henri Hannula (4 out of 9 patents)

4.  Jari Karhu (3 out of 4 patents)

5.  Raine Hurme (2 out of 2 patents)

6.  Perttu Sipilä (2 out of 2 patents)

7.  Risto Ilmoniemi (2 out of 6 patents)

8.  Marko Ollikainen (2 out of 2 patents)

9.  Juha Virtanen (1 out of 39 patents)

10.  Ilkka Autio (1 out of 2 patents)

11.  Gustaf Järnefelt (7 patents)

12.  Pentti Hynninen (1 patent)

13.  Katja Pesola (1 patent)


12 patents:

1. 9375585 - Magnetic stimulation device and method (2016-06-28),
2. 9101751 - Method and system for displaying the electric field generated on the brain by transcranial magnetic stimulation (2015-08-11),
3. 9082215 - Method of and system for overlaying NBS functional data on a live image of a brain (2015-07-14),
4. 9079010 - Transcranial magnetic stimulation induction coil device with attachment portion for receiving tracking device (2015-07-14),
5. 8882651 - Magnetic stimulation coils with electrically conducting structures (2014-11-11),
6. 8777831 - Transcranial magnetic stimulation induction coil device and method of manufacture (2014-07-15),
7. 7998053 - Transcranial magnetic stimulation induction coil device and method of manufacture (2011-08-16),
8. 7925066 - Method and apparatus for correcting an error in the co-registration of coordinate systems used to represent objects displayed during navigated brain stimulation (2011-04-12),
9. 7854232 - Transcranial magnetic stimulation induction coil device with attachment portion for receiving tracking device (2010-12-21),
10. 7440789 - Electrode structure for measuring electrical responses from the human body (2008-10-21),
11. 6849040 - Method and apparatus for dose computation of magnetic stimulation (2005-02-01),
12. 6537197 - Method for producing illusory magnetic stimulation (2003-03-25),
Company Overview
Nexstim Oy is a medical technology company based in Helsinki, Finland, specializing in non-invasive brain stimulation solutions. The company focuses on developing innovative therapies for neurological and psychiatric disorders, utilizing its proprietary navigated transcranial magnetic stimulation (nTMS) technology. This approach aims to enhance treatment precision and patient outcomes, particularly in conditions such as depression and chronic pain. Nexstim is committed to advancing the field of neurostimulation through rigorous research and clinical applications.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

12 Patents

#76 in Helsinki

#255 in Finland

#48,209 in the World

Helsinki, FI
Helsinki, Finland

Nexstim Oy

Forward Citations = 535

10 inventors:

goldMedal Jarmo Ruohonen (6 out of 11 patents)

silverMedal Matti Aho (5 out of 5 patents)

bronzeMedal Henri Hannula (4 out of 9 patents)

4.  Jari Karhu (3 out of 4 patents)

5.  Raine Hurme (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nexstim Oy. Retrieved from https://idiyas.com/company/nexstim-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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