Company patents
Stora Enso OYJ
Stora Enso OYJ's patent strategy reveals a strong, albeit fluctuating, focus on materials science, with "Layered Products (Laminates, Films)" representing the largest segment at 26.6% of its portfolio, experiencing a significant surge in 2025 with a 127.3% YoY growth. While there was a notable decline in patenting activity across most categories so far in 2026, categories like "Polymer Compositions" and "Polymer Working & Compounding" showed remarkable growth in 2025 at +200.0% and +120.0% respectively, indicating an emerging emphasis on polymer-related material innovations despite the partial data for the current year.
Patent Trend by Technology Area
Yearly patent publications since 2023
Product themes
Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.
203 US filings (since 2023) · 9 categories · 17 themes
Techniques for combining multiple materials or layers, often with specialized surface treatments, coatings, or assembly methods, to create functional or aesthetically enhanced plastic articles, including consumer goods and encapsulated electronics.
Multi-layer polymer films engineered to provide superior barrier properties against gases (e.g., oxygen), moisture, or aromas, often incorporating heat-sealing or resealing mechanisms for food and product preservation.
Techniques for manufacturing thin polymer layers, sheets, or multi-layer structures, often optimized for specific properties such as flexibility, barrier function, filtration, or mechanical strength.
Development and application of polymer compositions designed for reprocessability, recyclability, or incorporating sustainable additives, often featuring reversible bonds or bio-based components.
Polymer compositions incorporating inorganic or organic filler materials to impart specific functional properties such as thermal conductivity, flame retardancy, electrical conductivity, or enhanced mechanical strength and dimensional stability.
Focuses on the production and application of cellulose-based materials engineered at the nanoscale, such as nanocellulose or micro cellulose fibers, to impart improved mechanical, thermal, or barrier properties to composites and other products, often from sustainable sources.
Development and application of textile materials with engineered properties such as waterproofing, thermal regulation, anti-cling, structural coloration, or enhanced filtration capabilities for specific performance needs.
Adhesive technologies focused on environmental benefits such as biodegradability, natural origin, or designed for easy debonding and re-bonding to facilitate recycling, reuse, or specific application needs.
Polymer compositions engineered for enhanced heat resistance, thermal stability in molten states, or improved processability at high temperatures, often involving specific copolymers, blends, or stabilizing additives for applications in electronics or automotive.
Additives or compositions specifically formulated for surface application or modification to impart protective, decorative, or specialized functional properties to polymer products.
Novel formulations and mechanisms for initiating or controlling the polymerization and cross-linking of adhesives, including dual-curing systems, radical polymerization, and partial curing for tailored material properties.
Development of adhesive compositions that are applied in a molten state and solidify upon cooling, focusing on specific polymer blends, additives, and their resulting mechanical or optical properties.
Methods and tooling for forming structural components from fibrous materials impregnated with resin, involving processes like prepreg handling, resin infusion, and co-bonding during curing.
Structural elements within a container designed to secure, separate, cushion, or otherwise protect individual items or groups of contents from movement, shock, or damage.
Creation of membranes and surfaces with nanoscale features to control properties like porosity, hydrophobicity, or catalytic activity, particularly for applications in filtration, separation, and environmental remediation.
Thin, multi-layered films and structures specifically designed for electronic applications, including flexible substrates for devices, display panel components, and active material layers for battery electrodes.
Techniques for precisely creating structures, patterns, or devices with feature sizes in the nanometer range, including various lithography methods, self-assembly, and controlled growth of nanowires or thin films.
Patents
Showing 1-10 of 79
High-Barrier Packaging Films