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For the Inventor, By the Inventor

Poole, United Kingdom

Hamworthy Plc

Calculating rank
USPTO Granted Patents = 9

% Expired Patents = 88.9


Trademarks = 1

Forward Citations = 47

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14 inventors (with patents filed for the assignee):

goldMedal Pål Jahre Nilsen (5 out of 12 patents)

silverMedal Peder Hansson (4 out of 5 patents)

bronzeMedal Erik Bjørklund (2 out of 2 patents)

4.  Svein Tryti (2 out of 2 patents)

5.  Matteo Chiesa (2 out of 2 patents)

6.  Paal Jahre Nilsen (1 out of 4 patents)

7.  Erik Bjorklund (1 out of 1 patent)

8.  Reidar Friberg (1 out of 1 patent)

9.  Tor Fjeldly (1 out of 1 patent)

10.  Nicolai Gedde (1 out of 1 patent)

11.  Helge Andersen (1 out of 1 patent)

12.  Rune Strand (1 out of 1 patent)

13.  Svein Jørgensen (1 out of 1 patent)

14.  Jarle Michaelsen (1 out of 2 patents)

15.  Wojciech Piasecki (10 patents)


9 patents:

1. 9039884 - Electrostatic coalescing device (2015-05-26),
2. 8414777 - Coalescing apparatus, emulsion treatment system and method for coalescing (2013-04-09),
3. 8349153 - Method for fabricating a sheet-shaped electrode and a sheet-shaped electrode for an electrostatic coalescing device (2013-01-08),
4. 8282804 - Electrostatic coalescing device (2012-10-09),
5. 8137547 - Fluid treatment tank and a well fluid processing system comprising such a tank (2012-03-20),
6. 8092692 - Apparatus and method for separating immiscible fluid components (2012-01-10),
7. 8082933 - Vessel and methods for calibrating, cleaning or removing an implement located in such a vessel or inserting an implement into such a vessel (2011-12-27),
8. 7964079 - Electrostatic coalescing device (2011-06-21),
9. 7906003 - Subsea production system (2011-03-15),
Company Overview
Hamworthy PLC is a leading provider of commercial heating and hot water solutions. With over 100 years of experience in the industry, Hamworthy offers a wide range of products and services to meet the needs of businesses across various sectors. Their innovative and energy-efficient solutions help customers reduce their carbon footprint and lower operating costs. From boilers and water heaters to heat exchangers and controls, Hamworthy provides reliable and cost-effective solutions for all commercial heating requirements.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

9 Patents

#4 in Poole

#1,906 in United Kingdom

Poole, GB
Poole, United Kingdom

Hamworthy Plc

Forward Citations = 47

14 inventors:

goldMedal Pål Jahre Nilsen (5 out of 12 patents)

silverMedal Peder Hansson (4 out of 5 patents)

bronzeMedal Erik Bjørklund (2 out of 2 patents)

4.  Svein Tryti (2 out of 2 patents)

5.  Matteo Chiesa (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hamworthy Plc. Retrieved from https://idiyas.com/company/hamworthy

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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