Keio Corp. has a total of 7 patents globally, out of which 4 have been granted. Of these 7 patents, more than 57% patents are active. Japan is where Keio Corp. has filed all the patents. Parallelly, Japan seems to be the main focused R&D centre of Keio Corp.
Keio Corp. was founded in the year 1910. Company engaged in the transportation and distribution businesses.
Do read about some of the most popular patents of Keio Corp. which have been covered by us in this article and also you can find Keio Corp. patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Keio Corp. patent portfolio.
How many patents does Keio Corp. have?
Keio Corp. has a total of 7 patents globally. These all patents belong to unique patent families. Out of 7 patents, 4 patents are active.
How Many Patents did Keio Corp. 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 | Keio Corp. Applications Filed | Keio Corp. Patents Granted |
| 2019 | – | 1 |
| 2017 | 1 | 1 |
| 2015 | 2 | 1 |
How many Keio Corp. patents are Alive/Dead?
How Many Patents did Keio Corp. File in Different Countries?
All Patents of Keio Corp. are filed in Japan.
Where are Research Centres of Keio Corp. Patents Located?
All Research Centres of Keio Corp. Patents are Located in Japan.
List of Keio Corp. Patents
| Keio Corp. Patents | Title |
| JP6624816B2 | Home safety fence built-in monitoring stand device |
| JP3211984U | cooking device |
| JP2016148423A | V-belt replacement tool and auxiliary tool thereof |
| JP5759755B2 | Filling structures for railroad crossing grooves |
| JP2005250843A | Collection, delivery, and management system for money such as sales money |
| JP3638879B2 | Evacuation stairs device for vehicles |
| JP2004150320A | Battery voltage reduction alarm buzzer device |