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          Smith Derek | 
          Ventilated safety helmet 
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          Nava & C Spa | 
          Casco integrale, per motociclisti, dotato di un dispositivo di estrazione dell'aria, montato sulla sua sommita'. 
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          Nava & C Spa | 
          Valvola ad aletta flessibile perl'ammissione e l'intercettazione di aria per la ventilazione di un casco per motociclisti. 
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          Kiwi Sa | 
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          ヘルメツト 
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          1987-04-01 | 
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          Casco protettivo per motociclisti e simili provvisto di mezzi di ventilazione, regolabili manualmente 
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          Crash helmet 
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          Safety helmet and liner therefor 
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          Casco integrale per motocicletta provvisto di mezzi per impedire l'appannamento della visiera dello stesso. 
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          Helmet with sound ducts 
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          Mfg. body fitting crash helmet cushion - applies deformable lining along cushioned body part, with external, longitudinal protrusions 
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          Cold weather ventilation system for faceshield defogging 
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          Safety helmet and a head protector therefor 
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          Ventilation device for helmets for motorcyclists and the like 
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          Sport goggle with improved ventilation 
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          Goggle contoured for helmet engagement 
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          Sport goggle with side vent for improved ventilation 
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          Multilayer air-cushion shell with energy-absorbing layer for use in the construction of protective headgear 
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          Layered construction of protective headgear with one or more compressible layers of thermoplastic elastomer material 
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          Sturzhelm und Windabweiser für Sturzhelm 
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          Helmet retention system 
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          Helmet retention system 
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          Arkusz Tomasz | 
          Methods and apparatus for a head covering device with increased air circulation 
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          Tomasz Arkusz | 
          Methods and apparatus for a head covering device with increased air circulation 
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          2017-07-26 | 
          2019-11-29 | 
          Skis Rossignol - Club Rossignol | 
          Casque de sport a capacites d’aeration et de desembuage renforcees 
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          2017-08-07 | 
          2019-02-07 | 
          Uvex Arbeitsschutz Gmbh | 
          Helm 
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          2019-02-22 | 
          2022-02-08 | 
          株式会社Shoei | 
          ヘルメット用気流制御部材、および、ヘルメット 
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          2023-09-21 | 
          2025-03-27 | 
          Nexxpro - Fábrica De Capacetes, S.A. | 
          A resilient inner structure for a helmet with improved airflow and a helmet comprising it 
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