GUANGZHOU, China – Ling Yinhang Composite Materials Co., Ltd. (hereinafter "Ling Yinhang") has achieved another breakthrough in R&D with two newly granted ​National Invention Patents​ (Certification Nos. 7146322 and 7678751). This milestone solidifies the company’s comprehensive intellectual property portfolio in automotive core-component materials and smart manufacturing. To date, Ling Yinhang holds ​12 invention patents, 26 utility model patents, and 5 design patents, continuously strengthening its technological moat.

Core Patent Technologies Drive Product Innovation

The newly authorized patents focus on automotive component advancements:

​​"Composite Filter Material for Automobiles and Preparation Method Thereof"​​ (Patent No.: ZL 2024 1 0329763.4) breaks traditional filter performance limits, enhancing both filtration efficiency and durability.

​​"Composite Air Conditioning Unit with Air Purification Function"​​ (Patent No.: ZL 2024 1 1346274.6) provides innovative solutions for new energy vehicle (NEV) smart cabin environments.

Concurrently, the company’s ​air filter technology matrix​ expanded with 5 utility model patents covering antibacterial functions (ZL 2022 2 2906027.X), high adsorption (ZL 2022 2 2562442.8), and composite filter paper (ZL 2022 2 2243132.X), positioning Ling Yinhang at the industry forefront in technical coverage.

Authoritative Certifications Fortify Quality Foundation

Ling Yinhang adheres to global standards for manufacturing excellence:

Certified under ​IATF 16949 Automotive Quality Management System​ for closed-loop quality control.

Awarded ​ISO 14001 Environmental Management​ and ​ISO 45001 Occupational Health & Safety Management​ certifications, demonstrating green manufacturing capabilities.

​CN95-grade air filters​ (China’s highest automotive cabin air quality standard) are supplied to leading automakers including GAC Group and BYD, ensuring healthier mobility.

R&D and Manufacturing Synergy Accelerates Market Expansion

Leveraging its ​industry-academia collaboration with South China University of Technology​ and self-developed composite filter production lines, the company operates:

​Class 1000 (ISO 6) cleanrooms​ equipped with xenon aging testers and filter performance analyzers.

Fully automated filter production lines with a monthly capacity of 150,000 m².

Six product lines spanning NEV battery thermal materials and NVH solutions, serving ​30+ OEMs.

Recognized for technological excellence, Ling Yinhang received the ​GAC Toyota Quality Partnership Award​ for two consecutive years and was designated a ​Guangdong Provincial "Specialized, Refined, Unique, and Innovative" Enterprise​ in 2024. Annual revenue exceeded ¥156 million (USD $21.8M). The company now offers full-chain capabilities from material R&D (composite filter paper) → component manufacturing (filters/thermal pads) → system integration (air filter assemblies/battery thermal management), driving intelligent transformation across the automotive sector.

"Patents represent not only technological achievements but tangible commitments to our clients,"stated General Manager Chen Dong. "Ling Yinhang will maintain our R&D momentum, targeting 1-2 new patents monthly to advance automotive components toward higher efficiency, sustainability, and intelligence."

​About Ling Yinhang​

Established in 2016 in Guangzhou, Ling Yinhang Composite Materials Co., Ltd. is a National High-Tech Enterprise specializing in automotive NVH solutions, thermal management filtration systems, and core materials for NEV three-electric systems (battery, motor, electronic control). Its 12,500 m² smart factory in Zengcheng District supplies tier-1 partners including GAC Group, XPENG, and BYD.