Patent landscapes › Electronics & gadgets
Is a earplugs patented?
Short answer: specific designs of a earplugs have been patented many times, but "a earplugs" as a general idea is not what is protected. What matters is the exact combination of features in your version.
What our index shows
- 628 US and WO patent publications since 2000 have a title matching “earplug” or a close variant (our index of 9.7 million patent families; one publication per family).
- Among the 311 best keyword matches we examined, 93 were published in 2020 or later, and the earliest was published in 2000.
- Most frequent assignees in those matches: 3M INNOVATIVE PROPERTIES CO (23), PHONAK AG (12), MOLDEX METRIC INC (6), CABOT SAFETY INTERMEDIATE CORP (6).
- Most common patent classes (CPC subclasses): A61F (255), H04R (92), B29C (27), G10K (18).
Counts come from keyword matching on titles and abstracts, so they are indicative, not a legal count. Some matches are different products that share a word.
14 real patent publications related to a earplugs
- Noise-reduction and sound-insulation earplug WO-2026007925-A1 2026 · SSI NEW MAT ZHENJIANG CO LTD
A noise-reduction and sound-insulation earplug for being placed in the ear canal to isolate external sound. The earplug comprises: a housing (10), provided with a ventilation chamber (11) therein and an interface (20) in communica…
View on Google Patents - Tragus-pressing exoskeleton-type earplug with improved noise blocking properties WO-2026043156-A1 2026 · KOSIN UNIV INDUSTRY ACADEMY COOPERATION
One embodiment of the present invention provides an earplug for blocking noise, the earplug comprising: a bridge band which is worn on a user's head by being brought into close contact so as to surround at least a portion of a…
View on Google Patents - Foam earplug with transdermal material US-12433793-B2 2025 · MOLDEX METRIC INC
A foam earplug for reception at least partially within the ear canal and including a body portion formed of resilient foam plastic material having a multiple open cell structure and having a size and shape for at least partial rec…
View on Google Patents - Airbag-type earplug comfortable to wear and offering sound insulation and noise reduction US-12285316-B1 2025 · ZHOU XIANGRONG
The utility model discloses an airbag-type earplug comfortable to wear and offering sound insulation and noise reduction, which comprises a support part and an airbag part, a through ventilation channel is arranged in the middle o…
View on Google Patents - System and method to perform in-ear noise dosimetry and personal attenuation rating under an electro-acoustic earplug while excluding wearer-induced disturbances and separating exposure sources US-12413920-B2 2025 · ECOLE TECHNOLOGIE SUPERIEURE
A system and method to measure noise reduction and evaluate the contributions of various sound sources to noise exposure dose of exposition using electro-acoustic earplugs is provided. The system may be implemented as an advanced …
View on Google Patents - Filter and noise-reducing earplug US-12383433-B2 2025 · MENGBAOLONG TECH CO LIMITED
Disclosed are a filter and a noise-reducing earplug, the noise-reducing earplug includes a filter, and the filter includes a shell, a flexible sound filtering block, and an adjustment pressing plate, wherein the shell is provided …
View on Google Patents - Microporous ventilated noise-cancelling earplug WO-2025065738-A1 2025 · RAYCONO SHENZHEN INNOVATION CO LTD
Disclosed is a microporous ventilated noise-cancelling earplug, comprising an earplug sleeve and an earplug main body. An accommodating cavity is provided in the earplug sleeve, the earplug main body is detachably mounted in the a…
View on Google Patents - Adhesive earplugs useful for sealing the ear canal US-11446182-B2 2022 · TUSKER MEDICAL INC
Systems and methods are provided for sealing an ear canal for retaining a solution in the ear canal. Adhesive earplugs are provided through which the solution can be delivered, and which, following delivery, retain the fluid in th…
View on Google Patents - Earplug with pressure regulation and noise control US-2021378869-A1 2021 · NG CASEY
An earplug with pressure regulation and noise control, for assembling on an earphone. The earplug is provided with a sound passage hole to connect with the earphone, and pressure regulation chambers formed on the periphery of the …
View on Google Patents - Sound attenuation device and noise-cancelling earplug having same WO-2019061639-A1 2019 · JIANGYIN SIAN PLASTIC PROTECH CO LTD
A sound attenuation device and a noise-cancelling earplug having the same. A sound attenuation device comprises a plug body (1) and a plug rod (2). An outer-side end of the plug body (1) has a sound-gathering cavity (101). An edge…
View on Google Patents - Earplugs for active noise control WO-2017042436-A1 2017 · QON OY
An earplug (100, 200) is provided. The earplug comprises a first transducer, a second transducer, and a signal processor coupled to the first transducer and the second transducer. The signal processor (206) is configured to genera…
View on Google Patents - Foam earplug extrusion US-8663513-B2 2014 · JENKINS JR JOHN ALLEN
Foam earplugs ( 90 ) are produced by extruding foamable material through a nozzle ( 12 ) having a throat ( 30 ) where the nozzle diameter is smallest, to produce an extrusion ( 34 ) that expands in diameter along an expansion zone…
View on Google Patents - Foam earplug in deformable sheath US-2009277462-A1 2009 · 3M INNOVATIVE PROPERTIES CO
An earplug system 10 a , 10 b that includes a foam earplug 12 a , 12 b and a deformable sheath 14 that individually surrounds at least the body 16 of the foam earplug 12 a , 12 b in a noncompressed cond…
View on Google Patents - Extruded monolithic foam earplug US-6408981-B1 2002 · SAINT GOBAIN PERFORMANCE PLAST
A monolithic earplug being compressible or deformable. The earplug is fabricated from an extruded, elastomeric thermoplastic in order that it may be rapidly and efficiently produced, and then the extrudate is cut at the die face, …
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What this means for your idea
Because patents cover specific combinations of features, the useful question is not “has a earplugs been patented?” but “has my combination of features been described before?” Consumer electronics are among the most heavily patented areas; the specific circuit, mounting, or interaction is what distinguishes a design.
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Guides that help with this
First-look landscape. Not exhaustive. Not legal advice. This page lists keyword-matched publications from a limited database; it does not say whether any product is or isn't covered by a patent, whether a patent is still in force, or whether your idea is patentable. Consult a registered patent attorney or agent.