Central Japan Railway has a total of 4533 patents globally, out of which 3115 have been granted. Of these 4533 patents, more than 41% patents are active. Japan is where Central Japan Railway has filed the maximum number of patents, followed by the United States of America and Taiwan. Parallelly, Japan seems to be the main focused R&D centre and also is the origin country of Central Japan Railway.
Central Japan Railway was founded in the year 1987. Central Japan Railway Company provides rail transportation services. The company runs department stores, hotels, restaurants, construction companies, and offers real estate and bus transportation services in addition to operating other enterprises. As of March 2023, Central Japan Railway has a market cap of $23.63 Billion.
Do read about some of the most popular patents of Central Japan Railway which have been covered by us in this article and also you can find Central Japan Railway patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Central Japan Railway patent portfolio.
How many patents does Central Japan Railway have?
Central Japan Railway has a total of 4533 patents globally. These patents belong to 3876 unique patent families. Out of 4533 patents, 1868 patents are active.
How Many Patents did Central Japan Railway 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 | Central Japan Railway Applications Filed | Central Japan Railway Patents Granted |
| 2023 | – | 25 |
| 2022 | 10 | 142 |
| 2021 | 57 | 102 |
| 2020 | 114 | 129 |
| 2019 | 120 | 134 |
| 2018 | 182 | 130 |
| 2017 | 212 | 190 |
| 2016 | 203 | 186 |
| 2015 | 198 | 165 |
| 2014 | 209 | 215 |
| 2013 | 270 | 207 |
| 2012 | 177 | 160 |
| 2011 | 160 | 157 |
How many Central Japan Railway patents are Alive/Dead?
How Many Patents did Central Japan Railway File in Different Countries?
Countries in which Central Japan Railway Filed Patents
| Country | Patent |
| Japan | 3811 |
| United States Of America | 162 |
| Taiwan | 86 |
| China | 79 |
| Europe | 75 |
| Korea (South) | 50 |
| Germany | 39 |
| Canada | 30 |
| Hong Kong (S.A.R.) | 22 |
| Spain | 19 |
| India | 11 |
| Australia | 10 |
| Singapore | 7 |
| Brazil | 7 |
| Viet Nam | 7 |
| United Kingdom | 5 |
| Austria | 4 |
| Indonesia | 4 |
| Malaysia | 3 |
| Israel | 2 |
| France | 1 |
| Russia | 1 |
| Norway | 1 |
| Italy | 1 |
Where are Research Centres of Central Japan Railway Patents Located?
10 Best Central Japan Railway Patents
JP2008281356A is the most popular patent in the Central Japan Railway portfolio. It has received 71 citations so far from companies like First Screening, Northstar Medical Radioisotope.
Below is the list of 10 most cited patents of Central Japan Railway:
| Publication Number | Citation Count |
| JP2008281356A | 71 |
| US6424289B2 | 55 |
| JP2008051224A | 44 |
| JP2008180619A | 38 |
| JP2011235733A | 37 |
| JP2005150657A | 37 |
| JP2002256555A | 37 |
| JP2003312774A | 34 |
| JP2003053655A | 34 |
| JP2002048101A | 34 |
How many inventions of other companies were rejected due to Central Japan Railway patents?
The statistics below share strategic R&D insights. It tells the companies that were trying to protect inventions similar to Central Japan Railway invention. They couldn’t because Central Japan Railway had protected those before them.
Examiners at the USPTO referred 39 Central Japan Railway patents in 120 rejections (35 USC § 102 or 35 USC § 103 types).
The top citing companies in the Central Japan Railway patent portfolio are Hitachi, Mitsubishi Electric and National Institute For Materials Science.
List of the Companies whose Patents were rejected citing Central Japan Railway –
| Company | Number of Patent Applications that faced Rejection Citing Central Japan Railway Patents | Number of Rejections (102 & 103) |
| Hitachi | 7 | 15 |
| Mitsubishi Electric | 3 | 3 |
| National Institute For Materials Science | 3 | 6 |
| Wabtec | 2 | 4 |
| Honda Motor | 2 | 4 |
| Kawasaki Heavy Industries | 2 | 2 |
| Oceansaver | 1 | 1 |
| Advanced Diamond Tech | 1 | 2 |
| Rohm | 1 | 2 |
| Cambridge Enterprise | 1 | 1 |
Count of 102 and 103 Type Rejections based on Central Japan Railway Patents
Top Central Japan Railway Patents used in Rejecting Most Patent Applications
| Patent Number | Count of Rejected Applications |
| US8571616B2 | 5 |
| US7763568B2 | 3 |
| US8431006B2 | 3 |
| US6609383B1 | 3 |
| US8734626B2 | 3 |
| US9590428B2 | 3 |
| US7749939B2 | 3 |
| US9216472B2 | 2 |
| US7224250B2 | 2 |
| US6615591B1 | 2 |
| US6931995B2 | 2 |
| US7324887B2 | 2 |
| US7870938B2 | 2 |
| US9412511B2 | 2 |
| US8048511B2 | 2 |
What Percentage of Central Japan Railway US Patent Applications were Granted?
Central Japan Railway (Excluding its subsidiaries) has filed 121 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 104 have been granted leading to a grant rate of 85.95%.
Below are the key stats of Central Japan Railway patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Central Japan Railway?
| Law Firm | Total Applications | Success Rate |
| Westman Champlin & Koehler | 14 | 64.29% |
| Oblon Mcclelland Maier & Neustadt | 12 | 83.33% |
| Finch & Maloney | 9 | 88.89% |
| Oliff | 9 | 77.78% |
| Grossman Tucker Perreault & Pfleger | 8 | 100.00% |
| Sughrue Mion | 8 | 87.50% |
| Koppel Patrick Heybl & Philpott | 7 | 100.00% |
| Kinney & Lange | 6 | 83.33% |
| Locke Lord | 5 | 100.00% |
| Marshall Gerstein & Borun | 5 | 100.00% |