118 patents in this list

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Traditional packaging systems face increasing pressure to reduce material waste while maintaining product integrity. Current single-use containers contribute significantly to global plastic waste, with estimates showing that less than 9% of plastic packaging is effectively recycled. Meanwhile, products requiring multiple uses or partial consumption need reliable resealing mechanisms that prevent contamination and preserve contents.

The fundamental challenge lies in designing resealable systems that balance user convenience, product protection, and environmental sustainability without compromising the structural integrity of the packaging.

This page brings together solutions from recent research—including deformable septum mechanisms for liquid preservation, flexible tab engagement systems for refillable containers, and adhesive-free interlocking structures for recyclable packaging. These and other approaches demonstrate how engineering innovations are addressing the practical demands of modern packaging while reducing environmental impact.

1. Refillable Dispensing System with Interchangeable Cartridge and Integrated Cutting-Sealing Mechanism

CANZIANI HOFFA MAURO ANDRÉS, 2025

A reusable, refillable dispensing system for containers like bottles and jars that allows concentrated formulas like vitamins or minerals to be added to existing liquids without disposable cartridges. The system has an interchangeable cartridge that screws onto an adapter on the bottle neck. Inside the adapter are cutting and sealing mechanisms that slice the cartridge seal and push it into the bottle without dropping it. The cartridge can be removed and refilled, reducing waste compared to disposable cartridges. The adapter also allows varying volumes and thread sizes for reusability.

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2. Wine Bottle Sealing Kit with Deformable Septum and Dual-Ended Bodkin Tool

DUNLAP MERVLE LYNN, MERVLE LYNN DUNLAP, 2024

Kit for sealing a partially depleted wine bottle to preserve the remaining wine without oxidation. The kit has a deformable septum that can be pushed through the bottle neck and expanded to seal against the inside of the bottle. A bodkin tool has a ramming end to insert the septum and a retrieving end to extract it. The septum can be precisely placed above the wine level to prevent air ingress. This allows resealing a wine bottle without the need for specialized equipment like the Coravin tool.

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3. Two-Piece Cosmetic Container Cap with Flexible Skin and Internal Ribbed Locking Mechanism

LOREAL, 2024

A packaging and dispensing assembly for a cosmetic product that improves the design of the cap on the product container. The cap has a two-piece construction with a flexible skin connected to a rigid frame. This allows the cap to snap onto the product container without visible snap-on grooves. The cap also has a ribbed structure on the inside that locks onto the container when assembled. The cap can be easily removed by pressing the tabs on the ribbed structure. This provides a better sealing and retention mechanism compared to traditional snap-on caps.

4. Cosmetic Packaging with Flexible Tab Engagement and Rotatable Axial Holding Ring for Refill Retention

LOREAL, 2024

Refillable cosmetic packaging with improved refill retention and easier refill swapping. The packaging has a cover assembly with flexible tabs around it, and a removable refill container with an axial holding ring. The ring engages the tabs to hold the refill axially in the cover. Rotating the ring in one direction locks it, preventing accidental refill ejection. Rotating the ring in the opposite direction releases the refill. This provides secure retention and easy refill swapping. The tabs prevent clearance between the refill and cover, improving quality perception. The ring engages the tabs to indicate it's locked.

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5. Foldable and Rollable Packaging Box with Adhesive-Free Interlocking Structure

권영삼, KWON YOUNG SAM, 2024

A two-way rollable packaging box that can be recycled without using adhesives for fixed connection. The box has a unique folding structure with six outer walls, first and second side walls, first and second inner walls, and central side walls. The outer walls, side walls, and inner walls fold to create a box shape. The central side walls have wing pieces that connect to the inner walls. The box folds into a triangular prism shape. The side walls have through holes. The inner walls fold inward to hold the contents. The box has fixing and coupling parts at the ends of the outer and inner walls to secure the box when rolled. The box can be rolled and unrolled without adhesives or tape for sealing. It can be easily recycled since it's made of a single material without adhesives or plastics.

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6. One-Piece Cosmetic Applicator with Rotatable Drive Ring and Sliding Applicator Assembly

ALBEA SERVICES, 2024

A simplified, one-piece device for packaging and applying cosmetic products like mascara that eliminates the need for a spring and complex locking mechanism. The device has a sliding applicator assembly that can be opened and closed by rotating a drive ring. The ring has a slot that engages grooves on the container neck. Rotating the ring drives the applicator assembly in and out by sliding it along the grooves. This allows opening the applicator to dispense product, then closing it by rotating the ring back. The ring can rotate between two angular positions, one for closed and one for open.

7. Cosmetic Packaging Assembly with Flexible Tab-Engaged Refillable Cup and Locking Mechanism

LOREAL, 2024

Refillable packaging assembly for cosmetics that improves retention and ease of refill replacement. The assembly has a container, refill cup, cover, and locking member. The refill cup has flexible tabs that engage with the locking member. When screwed in, the tabs compress between the cup and member, then return to exert force keeping the cup locked. When unscrewing, the tabs allow extraction. This provides secure cup retention without needing screw threads on the cup itself.

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8. Packaging Bag with Integrated Sealed Closure and Resealable Extraction Opening

永豐餘消費品實業股份有限公司, YUEN FOONG YU CONSUMER PRODUCTS CO LTD, 2024

Packaging bag with a built-in opening for easy extraction of the contents without having to tear the bag. The bag has a sealed closure and an extraction opening that can be opened to access the contents inside. This allows convenient and controlled dispensing of the bagged items without having to cut or tear the bag. The extraction opening can have a resealable feature to close it after use.

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9. Packaging Bag with Integrated Resealable Extraction Opening

YUEN FOONG YU CONSUMER PRODUCTS CO LTD, 2024

A packaging bag with an extraction opening for easily removing the contents without spilling. The opening allows access to the contents without needing to cut or tear the bag. It can be a resealable opening, like a zipper or fold-over flap, that can be closed after extraction. This provides convenience and reduces mess compared to traditional bags that require fully opening and emptying.

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10. Cardboard Food Packaging with Detachable Lid Featuring Lateral Tab and Slot Engagement System

LUCAS MAIER, 2024

Cardboard food packaging with a detachable lid that provides easy handling and repeatable connection without adhesive while maintaining dimensional stability. The lid rests on an edge flange projecting outwards from the container. The container and lid each have connecting tabs and slots that engage laterally along the edge flange. This allows the lid to slide on and off without glue while preventing movement. The tabs have undercuts to secure the lid and the slots have corresponding shapes.

11. Foldable Reusable Packaging with Hinged Side Walls for Compact Storage and Expansion

SIEC BADAWCZA LUKASIEWICZ - POZNANSKI INSTYTUT TECHNOLOGICZNY, SIEC BADAWCZA LUKASIEWICZ POZNANSKI INSTYTUT TECH, 2024

Reusable packaging for shipping products that can be folded compactly when empty and expanded to protect items during transport. The packaging has a bottom, top, and four hinged side walls that can fold parallel to the bottom in a compact configuration. In the expanded configuration, the side walls pivot out perpendicular to the bottom to create a box shape for protecting items during transport. This allows the packaging to be reused multiple times by collapsing it when empty for return shipping.

12. Integrated Elastic Deformation Mechanism for Paper-Based Packaging Box Covers

LEESUNRYE, 이선례, 2024

A cover opening and closing mechanism for packaging boxes that allows easy opening without separate release buttons or devices, while reducing manufacturing costs by using the same paper material for the cover and box. The mechanism involves an elastic piece inside the box that connects to the cover when closed. When the cover is forced upward, the elastic piece deforms and separates from the cover groove, allowing the cover to open. This prevents accidental closure. When closed normally, the elastic piece restores and clicks into the cover groove. The cover can be easily opened by pressing it onto the box.

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13. Pill Carrier with Pivoting Receiving Bodies and Spring Mechanism for Automated Blister Packaging

KNAPP AG, 2024

Pill carrier for intermediate transport in blister packaging processes that allows reliable, automated repackaging of various medications without needing custom carriers for each original blister. The carrier has recesses with pivoting receiving bodies that can open and close. Pills enter through the bottom and exit through the top opening. The pivoting motion is controlled by springs. This allows precise pill handling without damage. The carriers are arranged in rows. A filling device pushes plungers to pivot the bodies open. It enables filling multiple carriers simultaneously. A light grid checks if pills are falling in or out. This enables automated filling of mixed medications without custom carriers.

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14. Packaging Box with Sliding Inner Box and Connector-Actuated Adjustable Top Platform

TCPL PACKAGING LTD, 2024

Packaging box with a sliding inner box that allows the top platform to raise and lower when the inner box is pulled out or pushed in. The inner box has a connector panel that interconnects with the top platform. When the inner box is pulled out, the connector panel raises the top platform. When pushed back, the connector panel lowers the top platform. This provides a collapsible platform that can be raised when items are removed, then collapses when the inner box is replaced.

15. Three-Sided Resealable Food Storage Pouch with Foldable Panels and Interlocking Strips

SUSAN WILSON, WILSON SUSAN, 2024

A resealable food storage pouch that opens and reseals at three sides for easy access and reduced mess compared to traditional packaging. The pouch has a body with panels that can fold open on three sides like a book to access the contents. Interlocking strips and seams secure the closure. This allows the pouch to be opened wider than a regular resealable pouch for better accessibility and resealing without spilling contents.

16. Closure System with Interdigitating Elastomeric Profiles Providing Auditory and Tactile Feedback

S C JOHNSON & SON INC, 2024

Reusable pouch with a closure system that provides auditory and tactile feedback when opening and closing the pouch. The closure has an elastomeric male closure profile with oversized regions that interdigitate with the female closure profile. This creates a snap when closing that indicates a tight seal. The oversized regions provide tactile feedback and the snap provides audible feedback. The intermittent interdigitations prevent the male from fully retracting, requiring the snap to fully engage for a tight seal.

17. Ink Bottle with Protruding Nozzle for Controlled Attachment and Detachment in Refillable Printer Tanks

CANON KK, CANON KABUSHIKI KAISHA, 2024

Bottle design for refillable ink tanks in printers to reduce ink dripping and contamination when attaching and detaching the ink bottle. The bottle has a nozzle that protrudes into the tank when attached to prevent ink from dripping or trickling back out when detached. The nozzle also prevents ink from contacting the tank opening when ink is supplied, preventing ink adhesion and dripping. This reduces ink contamination on the bottle and surrounding areas.

18. Jar Container with Inner Lid Featuring Convex Dome Expansion Mechanism and Flange Engagement

株式会社吉野工業所, YOSHINO INDUSTRY CO LTD, 2024

Jar container with improved airtightness by using an inner lid that attaches to the container mouth and a screw-on lid. The inner lid has a convex dome-shaped top that expands when the outer lid is screwed on, sealing against the container mouth. This prevents air leakage through the wide mouth. The inner lid also has a flange that engages a recessed step in the container mouth. The outer lid screws onto the inner lid and pushes the dome inward to expand the inner lid diameter. When the outer lid is removed, the inner lid returns to its original size for easy removal.

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19. Bottle Cap with Mullet Design Featuring Manually Operable Tabs for Tool-Free Opening and Resealing

LOGAN GEOFFREY, Geoffrey Logan, 2024

A bottle cap with a unique design that allows easy opening and resealing of glass bottles without requiring a tool. The cap has a distinctive "mullet" style with a short front section and long back section. The back section has multiple tabs that can be manually lifted and folded to open the cap. To reseal, the tabs are folded back down. This provides a tool-free way to open and close the bottle without needing a bottle opener. The mullet shape and stiffened tabs enable easy manual manipulation to open and reseal the cap.

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20. Folding Cake Box with Integrated Snap Closure Mechanism

CARTONNAGES ROLAND NV, 2024

A folding cake box with a snap closure mechanism to securely seal the box without the need for tape or other external fasteners. The box has a container and lid that can be folded from a sheet. The container has a front wall that pivots down when closing. The front wall and lid both have cutouts with teeth and slits. The teeth snap into the slit to secure the closure. This allows deliberate opening and reclosing without tape, while preventing accidental opening.

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21. Thermoformed Container with Flanged Edge and Protrusion-Engaged Reclosable Cover Rim

22. Connected Bottle Cap with Reusable Closure Element and Breakable Bridges for Initial Seal Separation

23. Cosmetic Packaging Device with Base-Integrated Lifting Support and Removable Product Attachment

24. Powdered Beverage Bottle with Pedal-Operated Propeller and Removable Bottom Lid

25. Cylindrical Dosing Cap with Threaded Lid and Pin-Secured Openings for Flexible Doypack Packaging

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