Top 100 Key Players companies in Hygrometer by Highest Patent Value in the world in 2021 – Discovery

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The Hygrometer top 100 is Discovery PatSnap’ annual ranking of the top 100 Highest Patent Value Hygrometer Key Players in the world. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2021, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.

A hygrometer is an instrument used to measure the amount of humidity and water vapour in the atmosphere, in soil, or in confined spaces. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass, a mechanical or electrical change in a substance as moisture is absorbed. By calibration and calculation, these measured quantities can lead to a measurement of humidity. Modern electronic devices use temperature of condensation (called the dew point), or changes in electrical capacitance or resistance to measure humidity differences. The first crude hygrometer was invented by the Italian Renaissance polymath Leonardo da Vinci in 1480 and a more modern version was created by Swiss polymath Johann Heinrich Lambert in 1755. Later in the year 1783, Swiss physicist and Geologist, Horace Bénédict de Saussure invented the first hygrometer using human hair to measure humidity.

1	Holtec International, Inc.	United States	Nuclear fuel,Petroleum industry,Heat transfer, ...[+2]	Avg patent value: 4.23 M
2	Terumo Corp.	Tokyo, Japan	Health care,Blood management,Syringe, ...[+2]	Avg patent value: 2.27 M
3	Espec Corp.	Osaka, Japan	Climate system,Computer hardware,Electronics, ...[+2]	Avg patent value: 2.23 M
4	FANUC Corp.	Yamanashi, Japan	Robotics,Robot,Automation, ...[+2]	Avg patent value: 930,000
5	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	Avg patent value: 260,000
6	LI-COR, Inc.	Nebraska, United States	Reagent,Molecular diagnostics,Health care, ...[+2]	Avg patent value: 216,000
7	China IPPR International Engineering Corp.	China	Urban planning,Construction engineering	Avg patent value: 190,000
8	Taiwan FamilyMart Co., Ltd.	Taiwan Province, China	Cosmetics,Retail sector,Food industry	Avg patent value: 180,000
9	FamilyMart	Tokyo, Japan	Accounting,E-commerce	Avg patent value: 180,000
10	China Petroleum & Chemical Corp.	Beijing Shi, China	Petrochemical,Petroleum,Enterprise software, ...[+2]	Avg patent value: 170,000
11	Henan Epri Electric Power Technology Co. Ltd.	China		Avg patent value: 140,000
12	China Telecom Corp. Ltd.	Beijing Shi, China	Telecommunications,Internet access,Information technology consulting, ...[+2]	Avg patent value: 120,000
13	Korea Western Power Co., Ltd.	Chungcheongnam-do, South Korea	Electric utility,Electric power distribution,Electric power transmission	Avg patent value: 120,000
14	Fujitsu Ltd.	Tokyo, Japan	Cloud computing,Enterprise software,Information technology management, ...[+2]	Avg patent value: 100,000
15	Fujitsu Microelectronics America, Inc.	California, United States	Semiconductor,Microelectronics,Electronic component, ...[+2]	Avg patent value: 100,000
16	Shanghai Nuclear Engineering Research & Design Institute	Shanghai Shi, China	Nuclear engineering	Avg patent value: 85,600
17	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		Avg patent value: 77,000
18	Daya Bay Nuclear Power Operations & Management Co., Ltd.	China		Avg patent value: 76,000
19	Nippon Sharyo, Ltd.	Aichi, Japan	Public transport,Facility management,Diesel locomotive, ...[+2]	Avg patent value: 64,000
20	Nippon Telegraph & Telephone Corp.	Tokyo, Japan	Telecommunications,Cloud database,Data center, ...[+2]	Avg patent value: 56,000
21	NEC Fielding Ltd.	Tokyo, Japan	System deployment,Information technology consulting,Personal computer, ...[+1]	Avg patent value: 55,000
22	Shanghai Qiyao Heavy Industry Co. Ltd.	Shanghai Shi, China	Diesel engine,Manufacturing engineering,Mechanical engineering, ...[+2]	Avg patent value: 54,000
23	Roscid Technologies , Inc.	United States		Avg patent value: 53,000
24	Oasis Corp	Ohio, United States	Bottled water,Manufacturing engineering,Automation, ...[+2]	Avg patent value: 51,000
25	Maanshan Iron & Steel Co., Ltd.	Anhui Sheng, China	Metal,Industrial engineering,Precious metal, ...[+2]	Avg patent value: 49,250
26	The Chugoku Electric Power Co., Inc.	Hiroshima, Japan	Renewable energy,Petroleum industry,Electric power transmission, ...[+2]	Avg patent value: 48,000
27	Takenaka Corp.	Osaka, Japan	Construction engineering,Site location,Masonry, ...[+2]	Avg patent value: 48,000
28	Shin Nippon Air Technologies Co., Ltd.	Tokyo, Japan	Construction engineering,Air conditioning,Humidity, ...[+2]	Avg patent value: 47,000
29	Josho Gakuen Educational Foundation	Osaka, Japan		Avg patent value: 44,500
30	Techno Ryowa Ltd.	Tokyo, Japan	Air conditioning,Construction engineering,Conditioners	Avg patent value: 43,000
31	Guangzhou Bosma Optoelectronic Technology Co. Ltd.	Guangdong Sheng, China	Computer hardware,Electronics,Semiconductor, ...[+1]	Avg patent value: 41,000
32	CGN Power Co., Ltd.	Guangdong Sheng, China	Centrifugal pump,Power transmission,Electricity, ...[+1]	Avg patent value: 39,700
33	China General Nuclear Power Corp.	Guangdong Sheng, China	Solar energy,Nuclear engineering,Petroleum industry, ...[+2]	Avg patent value: 39,700
34	Suzhou Nuclear Power Research Institute Co. Ltd.	China		Avg patent value: 39,700
35	Nohmi Bosai Ltd.	Tokyo, Japan	Fire protection,Automation,Manufacturing engineering, ...[+2]	Avg patent value: 38,000
36	Azbil Corp.	Tokyo, Japan	Building automation,Software,Electronics, ...[+2]	Avg patent value: 37,500
37	Hitachi High-Tech Solutions Corp.	Japan		Avg patent value: 37,000
38	Tokico System Solutions Ltd.	Kanagawa, Japan	Automotive systems,Manufacturing engineering,Instrumentation, ...[+2]	Avg patent value: 35,000
39	Wagner Electronic Products, Inc.	OR, US		Avg patent value: 34,000
40	STARTUP Ingenera SA	Switzerland	Deep learning,Farming industry,Livestock	Avg patent value: 33,000
41	State Grid Corp. of China	Beijing Shi, China	Electric vehicle,Power grid,Total asset, ...[+2]	Avg patent value: 30,790
42	Tanita Corp.	Illinois, United States	Body composition,Electric light,Health care, ...[+2]	Avg patent value: 25,000
43	Mitsubishi Power Ltd.	Kanagawa, Japan	Turbine,Control system,Renewable energy, ...[+2]	Avg patent value: 23,000
44	Samsung C&T Corp.	South Korea	Food material,LNG storage tank,Product design, ...[+2]	Avg patent value: 21,000
45	Jiangsu Hongli Photoelectric Technology Co., Ltd.	Jiangsu Sheng, China	Peripheral,Electronics,Computer hardware	Avg patent value: 18,000
46	KUMHO TIRE Co., Inc.	South Korea	Tire manufacturing,Automotive engineering,Radial tire, ...[+2]	Avg patent value: 17,000
47	Panasonic Intellectual Property Management Co. Ltd.	Osaka, Japan		Avg patent value: 16,000
48	LG Electronics, Inc.	South Korea	Computer hardware,Electronics,Telecommunications, ...[+2]	Avg patent value: 14,000
49	Continental Teves AG & Co. oHG	Hessen, Germany	Automotive safety,Hydraulic brake,Air suspension, ...[+2]	Avg patent value: 6,000
50	Johnson Matthey Plc	United Kingdom	Diesel particulate filter,Chemical engineering,Cisco Catalyst, ...[+2]	Avg patent value: 5,900
51	Guangdong Midea Refrigeration Equipment Co., Ltd.	Guangdong Sheng, China	Refrigeration,Electronics	Avg patent value: 3,800
52	Sumitomo Metal Mining Co., Ltd.	Tokyo, Japan	Nickel,Mining engineering,Natural resource management, ...[+2]	Avg patent value: 3,700
53	Huadian Electric Power Research Institute Co., Ltd.	Zhejiang Sheng, China	Hydropower,Energy technology	Avg patent value: 3,700
54	WISDRI Engineering & Research Inc. Ltd.	Hubei Sheng, China		Avg patent value: 3,700
55	China Southern Power Grid Technology Co., Ltd.	Guangdong Sheng, China	Construction engineering,Mechanical engineering,Civil engineering, ...[+1]	Avg patent value: 3,600
56	Guangzhou Aosong Electronics Co. Ltd.	China	Semiconductor,Capacitor,Electron, ...[+2]	Avg patent value: 3,600
57	Guangdong Esquel Textiles Co. Ltd.	Guangdong Sheng, China	Textile,Textile (markup language)	Avg patent value: 3,600
58	Dadeli Power Equipment Co., Ltd.	Zhejiang Sheng, China	Electronic product,Computer hardware,Electronics, ...[+2]	Avg patent value: 3,600
59	Koch Metals Trading Ltd.	United Kingdom	Metal,Over-the-counter	Avg patent value: 3,600
60	Shanghai Power Equipment Research Institute Co. Ltd.	China		Avg patent value: 3,600
61	Quangong Machinery Co. Ltd.	China		Avg patent value: 3,600
62	Ningbo Tianlai Garden Construction Engineering Co., Ltd.	China		Avg patent value: 3,600
63	Shanghai Sto Ltd.	Shanghai Shi, China		Avg patent value: 3,600
64	Wuxi China Resources Semico Co. Ltd.	China	Semiconductor,Transistor,Electronic component	Avg patent value: 3,550
65	PetroChina Co., Ltd.	Beijing Shi, China	Natural gas,Petroleum,Lubricant, ...[+2]	Avg patent value: 3,500
66	Angang Steel Co., Ltd.	Liaoning Sheng, China	Metal,Mining engineering,Precious metal, ...[+2]	Avg patent value: 3,500
67	Beijing SDL Technology Co., Ltd.	Beijing Shi, China	Manufacturing engineering,Process analysis,Environmental monitoring, ...[+2]	Avg patent value: 3,500
68	Jiangsu Electric Power Co.	Jiangsu Sheng, China	Power transmission,Electric power transmission	Avg patent value: 3,500
69	Shanghai Tobacco Group Co., Ltd	Shanghai Shi, China	Nicotiana tabacum,Cigarette filter,Tar, ...[+1]	Avg patent value: 3,500
70	Guangxi Tianyuan Biochemistry Co., Ltd.	China	Pesticide,Agriculture,Chemical engineering, ...[+2]	Avg patent value: 3,500
71	China Construction Second Engineering Bureau Co., Ltd.	Beijing Shi, China	Construction engineering	Avg patent value: 3,500
72	Gansu Huarui Agriculture Co., Ltd.	Gansu Sheng, China	Agriculture	Avg patent value: 3,500
73	China United Engineering Corp.	Zhejiang Sheng, China	Construction engineering,Municipal planning,Energy engineering, ...[+2]	Avg patent value: 3,500
74	Huaneng Clean Energy Research Institute	Beijing Shi, China	Petroleum coke	Avg patent value: 3,500
75	Yixing Heda Water Treatment Technology Co., Ltd.	Jiangsu Sheng, China		Avg patent value: 3,500
76	Jiangxi Qingfeng Pharmaceutical Co. Ltd.	China		Avg patent value: 3,500
77	Shanxi Jincheng Power Supply Co.	China		Avg patent value: 3,500
78	Zhejiang Huali Intelligent Equipment Co. Ltd.	China		Avg patent value: 3,500
79	Tianjin Modern Tianjiao Agriculture Technology Co. Ltd.	China		Avg patent value: 3,500
80	Wuhan Zhongli Geotechnical Engineering Co., Ltd.	China		Avg patent value: 3,500
81	Hunan Hexiang Packing Co. Ltd.	China		Avg patent value: 3,500
82	Guizhou Fenglei Aviation Ordnance Co., Ltd.	Guizhou Sheng, China	Oxygen,Automation,Manufacturing engineering, ...[+2]	Avg patent value: 3,500
83	Guangzhou Viva Bicycle Corp. Ltd.	China		Avg patent value: 3,500
84	Espec Test Equipment (Guangdong) Co., Ltd.	Guangdong Sheng, China	Computer hardware,Electronics	Avg patent value: 3,500
85	Jiangsu Frontier Electric Technology Co., Ltd.	Jiangsu Sheng, China		Avg patent value: 3,500
86	King Yuan Electronics Co., Ltd.	Taiwan Province, China	Semiconductor,Electronics,Systems design, ...[+2]	Avg patent value: 3,450
87	Shenyang Xinbo Industrial Technology Co., Ltd.	Liaoning Sheng, China	Industrial technology,Oil well,Mechanical engineering, ...[+1]	Avg patent value: 3,450
88	Fujian Electric Power Co., Ltd.	Fujian Sheng, China	Offshore wind power,Wind power,Power transmission	Avg patent value: 3,450
89	Aerosun Corp.	Jiangsu Sheng, China	Truck,Reinforced thermoplastic pipe,Automotive engineering, ...[+2]	Avg patent value: 3,400
90	Guizhou Transportation Plnng Survey & Design Academe Co., Ltd.	Guizhou Sheng, China	Project management,Construction engineering	Avg patent value: 3,400
91	China ENFI Engineering Corp.	Beijing Shi, China	Construction engineering,Mining engineering,Light metal, ...[+2]	Avg patent value: 3,400
92	Puyang Hongye Environment Protection New Materials Co., Ltd.	Henan Sheng, China	Chemical engineering	Avg patent value: 3,400
93	Emate Electronics Co. Ltd.	Fujian Sheng, China	Electronics,Computer hardware,Weather station, ...[+2]	Avg patent value: 3,400
94	Sichuan Jinxing Clean Energy Equipment Co. Ltd.	Gansu Sheng, China	Piston,National security,Aerospace, ...[+2]	Avg patent value: 3,400
95	Changzhou Aite Technology Co., Ltd.	Jiangsu Sheng, China	Petrochemical,Chemical engineering	Avg patent value: 3,400
96	Shenzhen Shennanyi Glass Products Co. Ltd.	China	Interior design	Avg patent value: 3,400
97	Powerchina Chengdu Engineering Corp. Ltd.	Sichuan Sheng, China	Hydraulic engineering,Construction engineering	Avg patent value: 3,400
98	Shanghai New Qumun Furniture Co. Ltd.	China		Avg patent value: 3,400
99	Shenzhen Yikaier Electronics Co., Ltd.	Guangdong Sheng, China		Avg patent value: 3,400
100	Nantong Tailida Chemical Co. Ltd.	China		Avg patent value: 3,400