Hong Kong & China Gas has a total of 567 patents globally, out of which 444 have been granted. Of these 567 patents, more than 69% patents are active. China is where Hong Kong & China Gas has filed the maximum number of patents, followed by Hong Kong (S.A.R.) and United States of America. Parallelly, China seems to be the main focused R&D centre and also Hong Kong is the origin country of Hong Kong & China Gas.
Hong Kong & China Gas was founded in the year 1862. The Company produces, distributes and markets gas and gas appliances to residential and industrial customers through its brands. The Company’s develops gas projects in China and manages commercial properties. As of June 2023, the market cap of Hong Kong & China Gas is $17.31 Billion.
Do read about some of the most popular patents of Hong Kong & China Gas which have been covered by us in this article and also you can find Hong Kong & China Gas patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Hong Kong & China Gas patent portfolio.
How many patents does Hong Kong & China Gas have?
Hong Kong & China Gas has a total of 567 patents globally. These patents belong to 444 unique patent families. Out of 567 patents, 396 patents are active.
How Many Patents did Hong Kong & China Gas File Every Year?
Are you wondering why there is a drop in patent filing for the last two years? It is because a patent application can take up to 18 months to get published. Certainly, it doesn’t suggest a decrease in the patent filing.
| Year of Patents Filing or Grant | Hong Kong & China Gas Applications Filed | Hong Kong & China Gas Patents Granted |
| 2023 | 3 | 21 |
| 2022 | 45 | 71 |
| 2021 | 77 | 46 |
| 2020 | 48 | 44 |
| 2019 | 63 | 55 |
| 2018 | 67 | 50 |
| 2017 | 94 | 40 |
| 2016 | 48 | 23 |
| 2015 | 16 | 16 |
| 2014 | 21 | 34 |
| 2013 | 28 | 4 |
| 2012 | 15 | 12 |
How many Hong Kong & China Gas patents are Alive/Dead?
How Many Patents did Hong Kong & China Gas File in Different Countries?
Countries in which Hong Kong & China Gas Filed Patents
| Country | Patents |
| China | 443 |
| Hong Kong (S.A.R.) | 80 |
| United States Of America | 17 |
| Macao | 7 |
| Europe | 5 |
| Singapore | 4 |
| United Kingdom | 4 |
| Canada | 1 |
| New Zealand | 1 |
| Brazil | 1 |
| Taiwan | 1 |
| India | 1 |
| Austria | 1 |
| Germany | 1 |
Where are Research Centres of Hong Kong & China Gas Patents Located?
10 Best Hong Kong & China Gas Patents
US7536908B2 is the most popular patent in the Hong Kong & China Gas portfolio. It has received 20 citations so far from companies like Siargo, Honeywell and Wisenstech.
Below is the list of 10 most cited patents of Hong Kong & China Gas:
| Publication Number | Citation Count |
| US7536908B2 | 20 |
| US7878056B2 | 18 |
| US7908096B2 | 17 |
| US8242024B2 | 14 |
| US7765679B2 | 14 |
| US7797997B2 | 13 |
| US7752910B2 | 13 |
| CN201439140U | 13 |
| US9109935B2 | 10 |
| CN2769701Y | 10 |
How many inventions of other companies were rejected due to Hong Kong & China Gas patents?
The statistics below share strategic R&D insights. It tells the companies that were trying to protect inventions similar to Hong Kong & China Gas invention. They couldn’t because Hong Kong & China Gas had protected those before them.
Examiners at the USPTO referred 13 Hong Kong & China Gas patents in 59 rejections (35 USC § 102 or 35 USC § 103 types).
The top citing companies in the Hong Kong & China Gas patent portfolio are Wisenstech, Siargo and Philips.
List of the Companies whose Patents were rejected citing Hong Kong & China Gas –
| Company | Number of Patent Applications that faced Rejection Citing Hong Kong & China Gas Patents | Number of Rejections (102 & 103) |
| Wisenstech | 3 | 7 |
| Siargo | 3 | 6 |
| Philips | 2 | 2 |
| Natural Gas Solutions | 1 | 2 |
| Dell Products | 1 | 2 |
| National Science Foundation | 1 | 1 |
| Electronics And Telecommunications Research Institute | 1 | 1 |
| Copreci | 1 | 1 |
| Emc Corporation | 1 | 2 |
| Sensortechnics | 1 | 1 |
Count of 102 and 103 Type Rejections based on Hong Kong & China Gas Patents
Top Hong Kong & China Gas Patents used in Rejecting Most Patent Applications
| Patent Number | Count of Rejected Applications |
| US7908096B2 | 8 |
| US7536908B2 | 7 |
| US7878056B2 | 4 |
| US7752910B2 | 4 |
| US7797997B2 | 3 |
| US8132455B2 | 3 |
| US7765679B2 | 1 |
| US9377125B2 | 1 |
| US9109935B2 | 1 |
| US8794082B2 | 1 |
| US9784607B2 | 1 |
| US8943888B2 | 1 |
| US8950253B2 | 1 |
What Percentage of Hong Kong & China Gas US Patent Applications were Granted?
Hong Kong & China Gas (Excluding its subsidiaries) has filed 3 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 3 have been granted leading to a grant rate of 100.0%.
Below are the key stats of Hong Kong & China Gas patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Hong Kong & China Gas?
| Law Firm | Total Applications | Success Rate |
| Leydig Voit & Mayer | 3 | 100.00% |