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For the Inventor, By the Inventor

Helsinki, Finland

Oy E. Sarlin Ab

Calculating rank
USPTO Granted Patents = 9

Forward Citations = 183

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11 inventors (with patents filed for the assignee):

goldMedal Hannu Sarvanne (6 out of 6 patents)

silverMedal Leo Numminen (1 out of 1 patent)

bronzeMedal Eero Oinonen (1 out of 1 patent)

4.  Jukka Palmu (1 out of 1 patent)

5.  Jyrki Tolvanen (1 out of 1 patent)

6.  Martti Varis (1 out of 2 patents)

7.  Rolf Lund (1 out of 1 patent)

8.  Rauno Seppanen (1 out of 1 patent)

9.  Sixten Jakobsson (1 out of 1 patent)

10.  Yrjo Tyllinen (1 out of 1 patent)

11.  Kaj Nyman (1 out of 1 patent)


9 patents:

1. 4999117 - Monitoring method for wastewater pump station and compatible apparatus (1991-03-12),
2. 4676718 - Impeller for a pump, especially a vortex pump (1987-06-30),
3. 4614478 - Pump impeller (1986-09-30),
4. 4389159 - Centrifugal pump (1983-06-21),
5. 4324531 - Guide apparatus for a submersible pump (1982-04-13),
6. 4305818 - Vacuum sewage system (1981-12-15),
7. 4193604 - Means for carrying a cable through a wall (1980-03-18),
8. 4178139 - Cistern pumping plant (1979-12-11),
9. 4061345 - Seal for a rotating shaft (1977-12-06),
Company Overview
Oy E. Sarlin Ab is a Finnish company specializing in industrial fluid handling solutions. Established in 1970, Sarlin provides a wide range of products and services including pumps, valves, instrumentation, and automation systems. With a strong focus on customer satisfaction and technical expertise, Sarlin has built a reputation for excellence in the industry. Visit their website for more information.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

9 Patents

#94 in Helsinki

#326 in Finland

Helsinki, FI
Helsinki, Finland

Oy E. Sarlin Ab

Forward Citations = 183

11 inventors:

goldMedal Hannu Sarvanne (6 out of 6 patents)

silverMedal Leo Numminen (1 out of 1 patent)

bronzeMedal Eero Oinonen (1 out of 1 patent)

4.  Jukka Palmu (1 out of 1 patent)

5.  Jyrki Tolvanen (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Oy E. Sarlin Ab. Retrieved from https://idiyas.com/company/oy-e-sarlin-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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