CARBIOS announces grant of U.S. patent for its PET recycling technology

  • Company’s PET enzymatic recycling technology recognized for its patentability
  • Core process and technology protected until 2033
  • CARBIOS now holds 29 patent families worldwide, 11 related to PET recycling technology


Clermont-Ferrand, France, March 28, 2019 (06:45 AM CET)CARBIOS (Euronext Growth Paris: ALCRB), a company pioneering new, bioindustrial solutions to reinvent the lifecycle of plastic and textile polymers, is pleased to announce that the United States Patent and Trademark Office (USPTO) has granted CARBIOS a patent on its proprietary process for PET recycling from plastic waste using enzymatic technology.

The patent granting (US 10,124,512) recognizes CARBIOS for its invention of a method for recycling polyethylene terephthalate (PET) from a mixture of plastic waste products using enzymes, to specifically depolymerize PET into its basic monomers. The monomers can then be transformed back into usable polymers for the manufacturing of new plastic products, such as bottles and packaging.

This patent, filed back in November 2013 by CARBIOS, is the first granted patent in the U.S. applied to this innovative PET plastic recycling method. This U.S. patent protects CARBIOS’ proprietary innovation through 2033. Beside the acceptance of this patent, CARBIOS currently holds 98 titles worldwide representing 29 patent families, six of which protect in full its proprietary method of biorecycling and five of which are related to PET degrading enzymes.

Jean-Claude Lumaret, CEO of CARBIOS, comments, “This patent strengthens our competitive position for the recycling of PET and it is gratifying to have the United States Patent and Trademark Office recognize the innovative nature of our proprietary technology.”

North America (United States, Canada, and Mexico) represents a significant contribution of the global PET market, producing 7% (4,6 Mt)[1] and consuming 21% (14,6 Mt)[2] of the world’s PET. The U.S. acceptance of CARBIOS’ patent on its process for PET recycling from plastic waste using enzymatic technology further confirms the strength of its intellectual property rights and paves the way for the Company’s expansion within this market.

CARBIOS’ biological process for depolymerizing PET allows for the development of a cost-efficient circular economy for plastic recycling without the need for extensive sorting generally required by conventional thermo-mechanical or chemical methods. Indeed, biorecycling of PET plastic using CARBIOS’ technology could lead to a much higher rate of efficient plastic recycling worldwide.

[1] Source: IHS Markit in 2018

[2] Source: IHS Markit in 2018, Transparency Market Research in 2015 and Pira International in 2012


CARBIOS is a green chemistry company whose innovations are designed to meet environmental and sustainable development issues faced by global industrial players. Since its creation in 2011, CARBIOS has developed two industrial bioprocesses dedicated to the biodegradation and the biorecycling of polymers. These breakthrough innovations, which are a worldwide premiere, leverage the highly specific properties of enzymes to optimize the performances and the life cycle of plastic and textile materials. CARBIOS’ economic development model is based on the industrialization and commercialization of its products, enzymes, technologies, and bioprocesses via the concession of licenses, directly or via joint ventures to major industrial players in the sectors that can make use of the Company’s innovative technologies. For instance, CARBIOS created in September 2016, the joint-venture CARBIOLICE, in partnership with Limagrain Céréales Ingrédients and the SPI investment fund run by Bpifrance. This company, controlled by CARBIOS, will operate the first patented enzymatic biodegradation technology licensed by CARBIOS by producing enzymated pellets to be used for the production of a new generation of bio-sourced and biodegradable plastics. Since inception, CARBIOS benefits from the financial support of the leading European venture capital firm Truffle Capital. CARBIOS was granted the label “Young Innovative Company” by Bpifrance (former OSEO) and is eligible for investments by private equity mutual funds (FCPIs).

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CARBIOS is eligible for the PEA-PME, a government program allowing French residents investing in SMEs to benefit from income tax rebates.

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Benjamin Audebert
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Caroline Carmagnol
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Press Relations U.S.
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