Company patents
Sonoco Development, Inc.
Sonoco Development Inc's patent strategy, while heavily focused on its core "Containers & Packaging" (70.1% of portfolio), shows a surprising shift away from manufacturing-related innovation, with "Plastics Shaping & Molding" and "Packaging Machines" experiencing significant declines of -53.3% and -57.1% respectively in 2025, and all top categories showing substantial drops so far in 2026, indicating a potential re-evaluation of its R&D priorities or a slowdown in patenting activity across its primary areas.
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.
194 US filings (since 2023) · 7 categories · 18 themes
Methods and apparatuses for creating unique package structures, such as recesses in specific materials, blister packages, or single-dose units, and for controlled dispensing of products from storage into these containers.
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.
Technologies and methods for securely closing, sealing, and maintaining the integrity of packages, including heat sealing, vacuum sealing, strapping, and specialized closure units, often involving material interaction and atmosphere control.
Containers or packaging components featuring active mechanisms for controlled release, preparation, or delivery of their contents, such as liquids, bulk materials, volatile compounds, or single-serve portions.
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.
Apparatus and methods for automatically winding or unwinding continuous materials such as webs, cables, conduits, or yarns onto or from spools, reels, or bobbins, including aspects like layering, coreless winding, and material supply.
Packaging solutions that incorporate active components such as motors, sensors, or indicators to perform specific functions, provide feedback, or enable tracking of the container or its contents.
Systems and methods for precisely measuring, monitoring, and regulating the longitudinal tension in continuous webs of material during roll-to-roll processes to prevent defects, reduce waste, and ensure consistent product quality.
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.
Design features and components integrated into containers to improve ease of carrying, handling, or transport, such as specialized handles, wheels, or adjustable elements.
Development and application of polymer compositions designed for reprocessability, recyclability, or incorporating sustainable additives, often featuring reversible bonds or bio-based components.
Mechanisms for storing, dispensing, and monitoring the delivery of liquid or solid laundry additives (detergents, softeners) into the wash fluid, including diagnostics for ensuring correct operation.
Methods and systems for uniquely identifying individual units of material (e.g., yarn spindles, winding spools, bobbins) and monitoring their performance or status within a material handling process, often using sensors and coding.
Systems and methods for filtering microplastics, lint, and other foreign particulates from water or air streams within laundry appliances, often including self-cleaning or blockage detection mechanisms.
Structural elements within a container designed to secure, separate, cushion, or otherwise protect individual items or groups of contents from movement, shock, or damage.
Household articles engineered with mechanisms for folding, retracting, or collapsing to reduce their footprint, facilitate storage, or enable portability.
Utilizes sensors and intelligent algorithms to detect laundry load characteristics, operational conditions (e.g., imbalance, resonance, dryness), and dynamically adjust washing or drying cycles for optimal performance and efficiency.
Systems that perform operations like cutting, folding, binding, or applying liquids to sheets or webs, often integrated within larger production lines such as printing or image forming apparatuses.
Patents
Showing 1-10 of 321