Rengo has a total of 2697 patents globally, out of which 1612 have been granted. Of these 2697 patents, more than 35% patents are active. Japan is where Rengo has filed the maximum number of patents, followed by China and the United States of America. Parallelly, Japan seems to be the main focused R&D centre and also is the origin country of Rengo.
Rengo was founded in 1909. Rengo produces paperboard and corrugated container stock. The company manufactures a variety of containers, from straightforward corrugated boxes to adornment gift boxes and printed consumer product packaging. Rengo also manufactures cellophane, certain chemicals, newspaper, and minor printing equipment. As of April 2023, the market cap of Rengo is $1.58 Billion.
Do read about some of the most popular patents of Rengo which have been covered by us in this article and also you can find Rengo patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Rengo patent portfolio.
How many patents do the Founder and CEO of Rengo have?
The Founder Teijiro Inoue have 0 patents and CEO Kiyoshi Otsubo have 0 patents.
How many patents does Rengo have?
Rengo has a total of 2697 patents globally. These patents belong to 2399 unique patent families. Out of 2697 patents, 963 patents are active.
How Many Patents did Rengo 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 | Rengo Applications Filed | Rengo Patents Granted |
| 2023 | 1 | 21 |
| 2022 | 33 | 100 |
| 2021 | 93 | 110 |
| 2020 | 109 | 80 |
| 2019 | 88 | 76 |
| 2018 | 127 | 107 |
| 2017 | 117 | 77 |
| 2016 | 141 | 67 |
| 2015 | 110 | 74 |
| 2014 | 109 | 68 |
| 2013 | 72 | 68 |
| 2012 | 58 | 84 |
| 2011 | 65 | 112 |
How many Rengo patents are Alive/Dead?
Worldwide Patents
How Many Patents did Rengo File in Different Countries?
Countries in which Rengo Filed Patents
| Country | Patent |
| Japan | 2221 |
| China | 157 |
| United States Of America | 36 |
| Korea (South) | 32 |
| Europe | 32 |
| Germany | 30 |
| Taiwan | 27 |
| Indonesia | 15 |
| Australia | 12 |
| Thailand | 12 |
| Malaysia | 10 |
| Viet Nam | 9 |
| Singapore | 9 |
| United Kingdom | 4 |
| Canada | 4 |
| New Zealand | 4 |
| India | 4 |
| Philippines | 3 |
| Hong Kong (S.A.R.) | 2 |
| Turkey | 1 |
| Brazil | 1 |
| Mexico | 1 |
| Austria | 1 |
| Spain | 1 |
| France | 1 |
Where are Research Centers of Rengo Patents Located?
10 Best Rengo Patents
JP2007223051A is the most popular patent in the Rengo portfolio. It has received 266 citations.
Below is the list of 10 most cited patents of Rengo:
| Publication Number | Citation Count |
| JP2007223051A | 266 |
| JP2006151402A | 107 |
| US6372333B1 | 102 |
| JP2003171419A | 99 |
| JP2006291031A | 53 |
| JP2004217766A | 45 |
| JP2004059001A | 44 |
| JP2003327243A | 40 |
| JP2002038038A | 39 |
| JP2009120248A | 34 |
What Percentage of Rengo US Patent Applications were Granted?
Rengo (Excluding its subsidiaries) has filed 66 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 54 have been granted leading to a grant rate of 84.38%.
Below are the key stats of Rengo patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Rengo?
| Law Firm | Total Applications | Success Rate |
| Wenderoth Lind & Ponack | 39 | 78.74% |
| Bakerhostetler | 3 | 100.00% |
| Leydig Voit & Mayer Ltd | 3 | 66.67% |
| Sughrue Mion Zinn Macpeak & Seas | 3 | 66.67% |
| Armstrong Nikaido | 2 | 100.00% |
| Nikaido Marmelstein Murray & Oram | 2 | 100.00% |
| Robert B Frailey Esq | 2 | 100.00% |
| D Peter Hochberg | 1 | 100.00% |
| Foley & Lardner | 1 | 100.00% |
| Hill Steadman & Simpson | 1 | 100.00% |