Another Victory for RIMFROST

The U.S. Patent and Trademark Office Patent Trial and Appeal Board (PTAB) has found another patent related to krill oil production, owned by Aker Biomarine, unpatentable.

The decisions by the PTAB on January 13th this year, are in response to two inter partes review petitions filed by RIMFROST AS, a Norwegian biotechnology company which produces krill oil.  

The rulings from the three-judge panel found all 61 claims of U.S 9,375,453 issued to Aker unpatentable.

“This is another victory in a long row of patent cases for RIMFROST. We hope this will settle any confusion created by Aker Biomarine in the US market. No legal process in the USA concerning its patents has gone in Aker Biomarine’s favour. That means the uncertainty which Aker Biomarine has sought to create around our products and ability to deliver is repudiated,” says Stig Remoy, CEO and principal owner of RIMFROST.

Massive growth

With its head office at Fosnavag in the Sunnmore region of western Norway, RIMFROST is one of the world’s largest producers of krill products. The USA represents one of its most important markets.

“We’ve experienced massive sales growth for our krill products since 2017,” says Remoy, adding: “Our quality is particularly high, and we can deliver even in a market with rapidly rising demand.”

New vessel

In November last year RIMFROST signed a contract for the world’s most modern and eco-friendly vessel for krill harvesting, worth more than NOK 1 billion.

The 120-metre-long vessel has been designed by Kongsberg Maritime on the basis of green technology and satisfies such standards as the DNV GL Clean Design class notation and the IMO’s Polar Code, where all processes are planned to minimise emissions and achieve extensive energy reuse.

“We’ve faced many challenges and obstacles on the way to where we are today,” says Remøy. “So we’re particularly pleased that we’re now putting in place a vessel which we believe will revolutionise krill fishing in Antarctica.”

For additional information, please contact:

Stig Remøy
Chief executive officer (CEO)
September 8, 2020
Steel cutting ceremony for our new krill vessel

The steel cutting ceremony at Tersan shipyard in Turkey was held at August 20, on our new krill vessel - we are excited!

September 1, 2020
Rimfrost vant mot Aker i høyesterett

Høyesteretts ankeutvalg avviste i dag anken fra Aker Biomarine i saken mot krillselskapet Rimfrost. Dermed er det endelig fastslått at patenter for produksjon av krillprodukter tilhører Rimfrost.

May 7, 2020

Krillselskapet Rimfrost har fått fullt medhold i ankesaken i Frostating lagmannsrett, der Aker Biomarine anla mot Rimfrost knyttet til patenter for krillforedling.

January 21, 2020
Another Victory for RIMFROST

The U.S. Patent and Trademark Office Patent Trial and Appeal Board (PTAB) has found another patent related to krill oil production, owned by Aker Biomarine, unpatentable.

November 27, 2019
Rimfrost orders world’s greenest and most modern krill vessel

Norwegian krill processor Rimfrost has awarded a contract to Westcon for building a new krill fishing vessel worth more than NOK 1 billion. The maritime cluster in Sunnmøre and other Norwegian enterprises stand to secure almost NOK 500 million in orders from the project.

November 27, 2019
Rimfrost kontraherer verdens mest moderne og grønne krillfartøy

Krillprodusenten Rimfrost inngår kontrakt med verftsgruppen Westcon om bygging av nytt krillfartøy til over en milliard norske kroner. Den maritime klyngen på Sunnmøre og andre norske virksomheter vil få oppdrag for nærmere en halv milliard kroner som følge av byggingen.

October 11, 2019

The Court of Appeals for the Federal Circuit has affirmed two earlier rulings from the Patent Trial and Appeal Board (PTAB), finding all claims of two patents from Aker Biomarine unpatentable.


The US Patent & Trademark Office (USPTO) has found for krill oil specialist RIMFROST AS on all counts in yet another case against Aker Biomarine. This is the seventh legal proceeding between the companies which Aker has either lost or withdrawn.

January 7, 2019

On the 20th of December 2018 the Directorate of Fisheries in Norway awarded a second license for krill harvest in Antarctica to RIMFROST.

November 2, 2018
New clinical study, using premium RIMFROST krill oil, published.

New clinical study finds that RIMFROST krill oil significantly reduces glucose in healthy humans

August 22, 2018
Full victory for Rimfrost against Aker Biomarine

The US patent authorities have found that patents related to krill oil and its production held by Aker Biomarine are unpatentable.

June 6, 2018
RIMFROST ready for Vitafoods 2018

Meet the RIMFROST team at Vitafoods in Geneva from May 15th to May 17th at stand #M140

The growth of RIMFROST continues

Stig Remøy continues the growth of RIMFROST and hires Karl-Erik Slinning as new Commercial Director

February 5, 2018
We are hiring - New position available

RIMFROST AS seeks a Commercial Director who can help propel the company forward. Take a look at this great opportunity in a company in growth.

December 7, 2017
We wish you a Merry Christmas

The RIMFROST team celebrates great results and increased sales in 2017! We continue to deliver supreme quality products!

September 21, 2017
New study from Rimfrost shows that krill derived ingredients may be health beneficial as it reduces atherosclerosis in mice

To increase knowledge about the biological effects and mechanism of actions of proteins and lipids derived from krill, the company has established a long-term collaboration with the University of Bergen in Norway.

Rimfrost AS reinforces the team in connection with planning of a new krill vessel

Rimfrost is in the planning and design phase for the construction of a new krill vessel. The vessel will be equipped to serve multiple market segments. The process facility in the new vessel will be based on patents owned by Rimfrost.

August 24, 2017
Rimfrost successfully petitions the U.S. Patent Office to Reconsider the Validity of Aker Krill Oil Patents.

Rimfrost AS, a Norwegian biotechnology company which supplies its RIMFROST Sublime krill oil to the world’s food supplement markets, announced today that the U.S. Patent & Trademark Office issued four (4) decisions finding that a reasonable likelihood exists that every claim of two (2) patents owned to Aker Biomarine Antarctic AS are unpatentable.

July 24, 2017
Aker ASA misinforms the market in their Q2 report

In their second quarter report 2017, Aker ASA misinforms the market about Aker Biomarines ownership in patents and intellectual property rights in connection with the purchase of F/T Juvel.

April 27, 2017
RIMFROST: Global krill demand increases, plans new vessel.

Norwegian krill manufacturer RIMFROST notes that the global demand for krill oil for human consumption increases, and begins the planning of a new vessel. “After several challenging years, the global krill market is now showing real signs of recovery”, owner of RIMFROST, Stig Remøy, says.

April 26, 2017
RIMFROST obtains regulatory approval in China

RIMFROST AS is a Norwegian biotechnology company which supplies its RIMFROST Sublime krill oil to the world’s food supplement markets. The company is experiencing increasing sales and market share growth, especially the USA and Europe. The strategy of RIMFROST is now to expand into China and offer a high quality krill oil with superior color and viscosity which meets the regulatory requirements of Chinese authorities. As a first step RIMFROST has been successful in obtaining regulatory approval from the National Health and Family Planning Commission (NHFMC).

April 20, 2017
Aker Biomarine withdraws patent lawsuit against Rimfrost

Yesterday, Aker Biomarine voluntarily withdrew its complaint at the International Trade Commission (ITC), alleging that krill manufacturer Rimfrost had violated several of its patents.

December 22, 2016
Merry Christmas from Rimfrost

As the Holiday Season is upon us, the RIMFROST TEAM wants to wish you a very Merry Christmas and a New Year filled with peace and prosperity.

October 1, 2016
Visit us at the Supply Side West show in Las Vegas 6. - 7. October 2016

We are attending this years Supply Side West show and hope to see you there. Stop by our booth #PP165 and lets talk krill.

September 30, 2016

RIMFROST in collaboration with partners in New Zealand has developed and patented a krill powder for human nutraceutical applications. In a long term collaboration with the University in Bergen, with the financial support from the Norwegian Research Council, krill products have been tested in animal models and in humans and the results have been published in international scientific journals. The most recent data shows that krill powder is effective in reducing atherosclerosis in apo E-/- mice, suggesting that it also may be effective in improving vascular health in humans.

September 22, 2016

RIMFROST AS is a Norwegian vertically integrated krill company which offers krill oil and krill powder to worlds food supplement markets. The company’s strategy to offer this product in South America has now reached a milestone as the company has been granted regulatory approval in Brazil.

July 13, 2016
RIMFROST SUBLIME 60PL obtains regulatory approval for the EU market.

RIMFROST AS is a Norwegian vertically integrated biotechnology company that operates and controls the production of high quality krill products from raw material to finished capsules. The company’s recent innovation, a 100% pure krill oil extract with 60% phospholipids, has now obtained a favourable opinion from the Finnish Novel Food Board based on substantial equivalence and is therefore ready for the European market.

New studies confirm the high stability of Rimfrost Pristine krill powder

In a collaboration with NOFIMA and Denmark Technical University, two stability studies have been performed, showing that the krill powder is stable and minimal degradation takes place.

March 30, 2015

RIMFROST AS has published a randomized, single-dose, cross-over trial in Lipids in Health and Disease which documents the bioavailability of fatty acids from RIMFROST krill products and fish oil in healthy humans.

August 21, 2015

Olympic Seafood AS has today received confirmation that its krill fishery is now certified by the Marine Stewardship Council (MSC).