UnfoldIP

Patent Theme

Road Hazard & Weather Warning

Technologies for detecting adverse weather conditions or road hazards and providing timely alerts and adaptive control strategies to vehicles and drivers to enhance safety.

4,335 US filings from 847 companies since 2023 · 2023: 1,115 · 2024: 1,339 · 2025: 1,278 · 2026 YTD: 603

Traffic Control Systems

Top companies

Ranked by filings in this theme since 2023. 2026 is partial.

#CompanySince 20232023202420252026 YTDYoY
1TOYOTA JIDOSHA KABUSHIKI KAISHA4789815017159+14.0%
2HONDA MOTOR CO., LTD.18034506432+28.0%
3GM GLOBAL TECHNOLOGY OPERATIONS LLC17632526230+19.2%
4Hyundai Motor Company15242384032+5.3%
5Kia Corporation13829383932+2.6%
6HERE GLOBAL B.V.1044833176-48.5%
7TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.10019353214-8.6%
8Hyundai Mobis Co., Ltd.873331167-48.4%
9NEC CORPORATION8614302814-6.7%
10STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANY842133255-24.2%
11SUBARU CORPORATION8019202516+25.0%
12DENSO CORPORATION7925192213+15.8%
13Ford Global Technologies, LLC721823229-4.3%
14HL KLEMOVE CORP.691327209-25.9%
15Bayerische Motoren Werke Aktiengesellschaft531513178+30.8%
16Volvo Car Corporation487161411-12.5%
17Robert Bosch GmbH41131396-30.8%
18Honeywell International Inc.40138145+75.0%
19Waymo LLC38815114-26.7%
20Huawei Technologies Co., Ltd.36121554-66.7%
21Mitsubishi Electric Corporation3515974-22.2%
22Volvo Truck Corporation3497153+114.3%
23International Business Machines Corporation3216835-62.5%
24ISUZU MOTORS LIMITED2791242-66.7%
25Nissan Motor Co., Ltd.268864-25.0%