Envorem Secures Third Patent, in Canada, Strengthening Its Global IP Portfolio
Envorem has been granted a Canadian patent for its technology for the treatment of hydrocarbon-contaminated materials – the company’s third patent to be secured, following earlier grants in the USA and Europe – strengthening protection of Envorem’s intellectual property as it continues to expand internationally.
The Canadian patent (No. 3,160,117) was granted on 10 February 2026 and covers Envorem’s proprietary process for treating oil-contaminated sludge and industrial waste materials. The invention is credited to Mark Batt-Rawden and Michael Levey and assigned to Envorem Limited.
Canada represents an important market for technologies capable of addressing oil sludge and hydrocarbon contamination, particularly given the scale of legacy waste associated with oil sands production and other heavy industrial activities.
Growing Global Patent Protection
The Canadian patent strengthens Envorem’s growing international intellectual property portfolio.
The company’s US patent was awarded on 29 July 2025 for the same core technology, recognising the innovation behind its approach to oily sludge remediation. See: Envorem Secures US Patent For Groundbreaking Oil Sludge Clean-Up Technology
Envorem’s European patent was received in 2023. See Sense About Science article entitled:
Envorem granted European patent for its green solution to the environmental menace of oil sludge.
“The most common remedial strategy in Europe is incineration, a costly and environmentally damaging operation that releases around 1.5 tonnes of CO2 per tonne of sludge,” Sense About Science observes. While Envorem, “quickly and economically disassembles sludge back into oil, water, and sediments, most of which can be recycled.”
Collectively, these three patents help protect Envorem’s proprietary process in key global markets where oil sludge and hydrocarbon-contaminated waste present major environmental and operational challenges.
Tackling a Global Waste Problem
Oil sludge is a persistent challenge for the oil and maritime industries. Often stored in lagoons or pits, it is difficult to pump, hazardous to handle, and expensive to dispose of using traditional methods such as incineration.
Envorem’s technology is designed to rapidly break down these viscous waste streams, separating them into oil, water and solids so that valuable materials can be recovered and waste volumes reduced.
“Securing the Canadian patent is another important step for Envorem as we continue to build protection for our technology in key international markets,” said Envorem Managing Director, Mark Batt-Rawden.
“Our process has been developed specifically to tackle the complex problem of oil sludge and hydrocarbon-contaminated waste. With patents now granted in Europe, the United States and Canada, we are building a strong foundation to deploy this technology globally and help the industry address one of its most persistent environmental challenges.”
Supporting Cleaner Industrial Remediation
Across the oil and gas sector, millions of tonnes of hydrocarbon-contaminated waste remain stored in pits, tanks and lagoons around the world. Technologies that can safely treat these materials while reducing emissions and waste volumes are increasingly important as environmental standards tighten.
Envorem’s patented process aims to provide a faster, more economical and more environmentally responsible approach to sludge remediation, supporting operators as they work to manage legacy waste and reduce their environmental footprint.
Why Canada?
Canada is a strategically important market for hydrocarbon-contaminated waste treatment. As Envorem looks ahead, the Canadian patent doesn’t just recognize the innovation, it also creates a stronger platform for future technical and commercial engagement in the region.
“With the Canadian patent now secured, we have stronger protection in a market we see as strategically important,” said Mark. “The next step is doing the right technical diligence on the ground and understanding where our process delivers the most value within Canada’s production and waste streams.
”The patent is also a clear signal of Envorem’s intent: we’re building the foundations to scale internationally and Canada is firmly on the roadmap.”
