65 patents in this list

Updated:

Modern mascara application presents distinct engineering challenges in fluid dynamics and material interfaces. Laboratory testing shows that standard mascara formulations exhibit non-Newtonian behavior with viscosities ranging from 300-5000 cP, while bristle-product interactions occur across microscopic scales of 10-100 micrometers, affecting both product distribution and lash separation.

The fundamental challenge lies in designing applicator systems that can precisely control product dosage and distribution while adapting to the varied geometries of natural lashes.

This page brings together solutions from recent research—including curved tapered cores with spindle-shaped bristle arrangements, flocked tip technologies with metal wire cores, and dual-curved pressing bodies with integrated supply systems. These and other approaches focus on achieving consistent application while preventing common issues like clumping and uneven coverage.

1. Detachable Eyelash Brush with Perimeter Bristles and Sealing Cap Assembly

Foshan Hantan Jun Cosmetics Co., Ltd., 2024

Eyelash brush for mascara application that prevents mascara from sticking to the brush rod and drying out. The brush has soft bristles around the perimeter of the rod instead of bristles attached to the rod. This allows mascara to be picked up by the bristles without clinging to the rod. The brush also has a mascara tube with a sealing cap. The cap has a rubber pad with a tapered slope and through hole. The mascara can be applied to the brush by pressing it against the pad, which prevents mascara from entering the tube through the through hole. This prevents mascara from drying out in the tube. The brush head can be detached and cleaned separately from the tube.

CN220423385U-patent-drawing

2. Mascara Applicator with Curved Tapered Core and Spindle-Shaped Bristle Tip

FAIRYDROPS INC, 2023

Mascara applicator with a unique brush shape that allows easy application of mascara from the root of the eyelashes near the eyelid margin. The applicator has a curved core with bristles protruding around its entire circumference. The curved core tapers to a point at the applicator tip. The bristles form a spindle shape at the tip. The core and bristle arrangement allows close contact with the eyelashes at the root when applying mascara. The curved shape and bristle distribution match the eyelid curvature.

3. Mascara Applicator with Rotatable Handle and Internal Brush Rotation Mechanism

ANHUI JUSU HIGH TECH IND CO LTD, 2023

A mascara applicator with a rotatable handle that allows easy and even application of mascara without manual rotation. The applicator has a protective shell with a rotatable connection to a handle shell. Inside the protective shell is a mascara-holding device with a coating brush. The brush fits snugly in a grooved ring with a rubber insert to prevent sliding. This configuration allows the user to twist the handle to rotate the brush inside the protective shell, simplifying mascara application and preventing uneven coating or smudging. The rotatable connection also makes it easy to remove and replace the brush for cleaning or refilling.

CN116982795A-patent-drawing

4. Mascara Applicator with Fan-Shaped Tip and Rotating Brush Roller

SHANGHAI YANGMING PLASTICS TECH CO LTD, 2022

Mascara applicator that prevents misapplication by having a fan-shaped tip. The applicator has a bottle body with a head and coating head. The head prevents mascara overflow and the coating head has a rotating brush roller with bristles. The applicator uses an internal mechanism to squeeze mascara from the bottle into the coating head. This allows the user to easily apply mascara without the risk of misapplication by providing a fan-shaped tip with bristles to coat the lashes. The rotating brush roller helps distribute the mascara evenly.

5. Mascara Applicator with Curved Rod for Unobstructed One-Handed Dual-Eye Application

John Butcher, 2021

Mascara applicator system that allows one-handed application of mascara to both eyes without blocking the mirror view. The applicator has a curved or inclined section on the elongated rod connecting the handle to the brush head. This allows the brush to swing outwards parallel to the handle midline when applying mascara to the left eye, without reversing grip or compromising angle. The curved section balances the brush position when switching eyes.

6. Handheld Device Integrating Eyelash Curler and Mascara Applicator with Combined Grip and Dual Assembly

Annette D. Dudas, 2019

A handheld device that combines an eyelash curler and mascara applicator in one tool. The device has a grip, a mascara assembly, and an eyelash curling assembly. The user holds the grip and uses the mascara applicator to apply mascara to their lashes. Then they can use the curling assembly to bend and style their lashes. This eliminates the need for separate tools and steps in the eyelash enhancement process.

US2019320772A1-patent-drawing

7. Mascara Brush with Integrated Storage Cavity, Hollow Bristles, and Rotatable Piston Mechanism

SHANGHAI YANGMING PLASTIC TECHNOLOGY CO LTD, 2019

Mascara brush that improves convenience and control of mascara application. The brush has a storage cavity in the brush head, hollow bristles, and a piston mechanism. The piston consists of a suction rod inside the brush shaft. When the user rotates the suction head, it pushes the piston to squeeze mascara from the bristles. This allows controlled mascara release without pushing mascara out directly. The user can also remove the brush assembly from the bottle to apply mascara. The piston prevents accidental spraying.

CN109770528A-patent-drawing

8. Mascara Applicator Set with Dual Curved Pressing Bodies and Integrated Mascara Supply System

SHISEIDO CO LTD, 2018

Mascara applicator set that allows curling and applying mascara at the same time to easily and efficiently curl lashes and keep the curl for longer. The set has a mascara container, a mascara supply tool, and a mascara transfer tool. The transfer tool has two curved pressing bodies that sandwich the lashes between them. One body has an upward-curved surface and the other has a downward-curved surface. This shape allows curling the lashes while transferring mascara. The transfer tool can also have a groove to guide the lashes. The supply tool pumps mascara onto the pressing surfaces. This enables simultaneous curling and mascara application without pushing the lashes down.

JP2018148999A-patent-drawing

9. Cosmetic Application Tool with Flocked Tip and Metal Wire Core

KAO CORP, 2018

A cosmetic application tool for applying cosmetics like mascara to eyelashes and eyebrows in a way that prevents clumping and hair bundling. The tool has a grip portion and a coating portion with a flocked tip. The flocked tip has a metal wire core covered in fine fibers. This design allows the cosmetic to evenly coat the entire brush, including the tip, and also adhere well to short eyelashes. The metal wire core provides followability and the flocked fibers dense retention.

10. Mascara Applicator with Dual Pivoting Sections and Threaded Container Interface

MINORU KANEMATSU, 2018

Mascara applicator with a unique design to prevent mascara scattering when removing it from the container. The applicator has two pivoting coated sections that close together when not in use. The container has threaded sections that screw together to secure the applicator in place. This prevents the applicator from suddenly popping out and spreading mascara when removed from the container. The applicator can be pulled out by unscrewing the threaded sections while holding the handle.

11. Dual-Brush Mascara Applicator with Separating Arms and Dual Portal Squeegees

Lisa Hatch, 2018

Mascara applicator with two brushes that can be separated and closed to apply mascara to both upper and lower lashes simultaneously. The applicator has arms with handle portions that spread apart to separate the brushes. This allows the brushes to be placed on opposite sides of a lash. When pressure is released, the arms close together, applying pressure to both brushes on the lash. This enables applying mascara to both sides at once. The applicator container also has dual portals with squeegees to remove excess mascara from the brushes.

US2018220774A1-patent-drawing

12. Mascara Brush with Adjustable Sliding Mechanism and Deformable Section for Eyelash Curling

Kolmar Korea Co., Ltd., 2018

Mascara brush that can curl eyelashes without needing a separate eyelash curler. The brush has a sliding member that can extend and contract. When the member is contracted, it compresses a deformable brush section. This deformed section curls the eyelashes when mascara is applied. The sliding member can be moved by pressing a lifting/lowering member. The lifting member has a fixing groove and protrusion that detachably attach to fix the sliding member position. This allows adjusting the curl angle of the deformed brush section.

13. Double-Ended Mascara Brush with Dual-Diameter Silicone Heads and Variable-Length Bristles

Shantou Wanbang Cosmetics Co., Ltd., SHANTOU MONBON COSMETICS CO LTD, 2017

Double-headed mascara brush with one end for thickening lashes and the other end for lengthening. The brush has a handle with a double-ended brush body. The larger-diameter end has a silicone brush head for thickening lashes near the root. The smaller-diameter end has a tapered silicone brush head with shorter bristles for elongating lashes. The brush body also has side walls with bristles of varying lengths to conform to eyelash curves. The dual-headed brush allows customized application for thicker and longer lashes.

CN206482197U-patent-drawing

14. Mascara Container with Dual Brushes Having Variable Comb Heights and Surface Grooves

INTERWORK KOREA CO LTD, 2017

Mascara with dual brushes that can apply mascara uniformly, curl lashes, and improve usability. The mascara has two brushes, one on each end of the container, with different height comb sections. This allows the brushes to combine and curl lashes better compared to a single brush. The comb sections have higher hardness than the brush sections. The brushes have cosmetics grooves on their surfaces. This helps apply mascara uniformly and prevents clumping. The mascara also has grips on the lid for easier opening and closing.

KR20170033727A-patent-drawing

15. Dual-Function Cosmetic Applicator with Retractable Eyeliner and Mascara Brushes

POPE EMMETT PIERRE, 2017

A multifunction cosmetic applicator that allows applying both eyeliner and mascara with a single device. It has an elongated pen-like shape with a retractable brush tip and a mascara brush. The brushes are enclosed inside the device when not in use. To apply eyeliner, the user extends the brush tip and squeezes a plunger to dispense liner fluid. For mascara, they retract the brush tip and extend the mascara brush. This allows conveniently applying both eyeliner and mascara with a single device.

US2017049214A1-patent-drawing

16. Mascara Brush with Elastic Member for Bristle Flexibility and Vibration Transfer

JO JI WON, 2016

Mascara brush with an integrated elastic member to improve mascara application and eyebrow makeup. The brush has an elastic member between the mascara body and the steel wire of the brush. This provides elasticity to the brush bristles. When applying mascara, the user's eyebrow movements create vibrations that transfer to the brush. This evenly distributes the mascara liquid, increases eyebrow curling effect, and improves combing. The elastic member can be an integral coil in the steel wire or an inserted coil spring. The mascara body may also be made of elastic material.

KR20160111171A-patent-drawing

17. Mascara Device with Dual Applicators and Segregated Chambers for Targeted Application

Judith L. Grabo, 2016

Mascara device with multiple applicators and chambers to provide better mascara application and prevent waste. The device has a housing with separate chambers for each applicator. One chamber has a larger brush tip for upper lashes and the other has a smaller tip for lower lashes. This allows targeted application without cross-contamination. The smaller tip also fits inside the larger one for easy storage.

18. Mascara Container with Integrated or Removable Lower Lash Line Lifting Applicator

LG HOUSEHOLD & HEALTH CARE LTD, 2016

Mascara container with an applicator designed to lift the lower lash line without using fingers during mascara application. The applicator has a unique shape that helps lift the lower lashes when pressed against the eye. It can be integrated into the container or removable. The applicator may have features like a widening bottom, curved ends, concave surfaces, or a matching shape to the container. This prevents contamination from fingers, improves hygiene, and makes it easier to apply mascara to the lower lashes.

19. Mascara Applicator with Dual Brushes on Reversible Arms and Pressure-Activated Opening Mechanism

LASH DUET LLC, 2016

Dual brush mascara applicator with reversible arms that open and close when squeezed. The applicator has two brushes on separate arms that can spread apart when pressure is applied to the handles. This allows the brushes to be positioned on opposite sides of an eyelash. When pressure is released, the brushes return to their closed position, applying pressure to the lashes. This enables applying mascara to both sides simultaneously. The applicator can also have a movable outer container that actuates when pressed to open the arms.

20. Mascara Coating Apparatus with Interchangeable Brush Heads and Insertion Port

Lg life health, LG Household & Health Care Ltd., 2016

Mascara coating apparatus with interchangeable brush heads to allow customization of mascara application effects. The apparatus has a container to hold mascara, an insertion port on the container, and multiple mascara brushes with different shapes and features. The user can switch between the brushes to get specific effects like volume, curl, length, or neatness when applying mascara. This allows tailoring the mascara application to personal preferences and needs, rather than relying on the fixed brush in a single mascara tube.

CN205093781U-patent-drawing

21. Silicone Mascara Brush with Comb-Shaped Section and Piston-Operated Dispensing System

22. Cosmetic Application Tool with Flocked Tip and Metal Wire Core

23. Curved Eyelash Mascara Applicator with Spirally Wound Brush and Flocked Tip

24. Mascara Container with Button-Activated Extendable Lower Brush for Clamping and Curling Lashes

25. Mascara Applicator with Rotatable Brush and Semi-Elliptical Supports

Get Full Report

Access our comprehensive collection of patents related to this technology