Sumco Corporation has a total of 8374 patents globally, out of which 5321 have been granted. Of these 8374 patents, more than 55% patents are active. Japan is where Sumco Corporation has filed the maximum number of patents, followed by United States of America and Taiwan. Parallelly, Japan seems to be the main focused R&D centre and also is the origin country of Sumco Corporation.
Sumco Corporation was founded in the year 1999. The Company manufactures silicon wafers for the semiconductor industry. The Company produces high-purity silicon wafers and other products. As of April 2023, the market cap of Sumco Corporation is $49.92 Billion.
Do read about some of the most popular patents of Sumco Corporation which have been covered by us in this article and also you can find Sumco Corporation patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Sumco Corporation patent portfolio.
How many patents does the CEO of Sumco Corporation have?
The CEO Mayuki Hashimoto has 0 patent.
How many patents does Sumco Corporation have?
Sumco Corporation has a total of 8374 patents globally. These patents belong to 4081 unique patent families. Out of 8374 patents, 4665 patents are active.
How Many Patents did Sumco Corporation 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 | Sumco Corporation Applications Filed | Sumco Corporation Patents Granted |
| 2023 | – | 79 |
| 2022 | 50 | 273 |
| 2021 | 150 | 282 |
| 2020 | 245 | 247 |
| 2019 | 399 | 324 |
| 2018 | 429 | 252 |
| 2017 | 421 | 200 |
| 2016 | 387 | 199 |
| 2015 | 244 | 229 |
| 2014 | 219 | 443 |
| 2013 | 153 | 439 |
| 2012 | 152 | 372 |
| 2011 | 331 | 356 |
How many Sumco Corporation patents are Alive/Dead?
How Many Patents did Sumco Corporation File in Different Countries?
Countries in which Sumco Corporation Filed Patents
| Country | Patents |
| Japan | 3891 |
| United States Of America | 1007 |
| Taiwan | 725 |
| Korea (South) | 666 |
| China | 578 |
| Germany | 497 |
| Europe | 330 |
| Singapore | 65 |
| Austria | 16 |
| Malaysia | 15 |
| France | 12 |
| Norway | 5 |
| Denmark | 3 |
| India | 3 |
| Hungary | 2 |
| Italy | 1 |
Where are Research Centres of Sumco Corporation Patents Located?
10 Best Sumco Corporation Patents
US7833348B2 is the most popular patent in the Sumco Corporation portfolio. It has received 218 citations so far from companies like Applied Materials, Asm Ip Holding and Taiwan Semiconductor.
Below is the list of 10 most cited patents of Sumco Corporation:
| Publication Number | Citation Count |
| US7833348B2 | 218 |
| US20180135172A1 | 168 |
| US20090031954A1 | 144 |
| US20080110401A1 | 139 |
| WO2012157162A1 | 133 |
| JP2002025951A | 119 |
| US8196545B2 | 97 |
| US8063466B2 | 95 |
| US20070281084A1 | 71 |
| JP2006040980A | 57 |
How many inventions of other companies were rejected due to Sumco Corporation patents?
The statistics below share strategic R&D insights. It tells the companies that were trying to protect inventions similar to Sumco Corporation invention. They couldn’t because Sumco Corporation had protected those before them.
Examiners at the USPTO referred 336 Sumco Corporation patents in 1150 rejections (35 USC § 102 or 35 USC § 103 types).
The top citing companies in the Sumco Corporation patent portfolio are Shin-Etsu Handotai, Siltronic and Globalwafers.
List of the Companies whose Patents were rejected citing Sumco Corporation –
| Company | Number of Patent Applications that faced Rejection Citing Sumco Corporation Patents | Number of Rejections (102 & 103) |
| Shin-Etsu Handotai | 47 | 92 |
| Siltronic | 35 | 35 |
| Globalwafers | 34 | 96 |
| Applied Materials | 23 | 59 |
| Tsmc | 21 | 41 |
| Semiconductor Energy Laboratory | 16 | 43 |
| Infineon Technologies | 12 | 29 |
| Japan Super Quartz | 10 | 29 |
| Corner Star | 9 | 22 |
| Tokyo Electron | 8 | 21 |
Count of 102 and 103 Type Rejections based on Sumco Corporation Patents
Top Sumco Corporation Patents used in Rejecting Most Patent Applications
| Patent Number | Count of Rejected Applications |
| US20070281084A1 | 12 |
| US8021484B2 | 11 |
| US7699934B2 | 9 |
| US7763541B2 | 8 |
| US7833348B2 | 8 |
| US9025854B2 | 7 |
| US8196430B2 | 7 |
| US7491342B2 | 7 |
| US7601603B2 | 7 |
| US7682472B2 | 6 |
| US8097511B2 | 6 |
| US20060189169A1 | 6 |
| US8241423B2 | 6 |
| US8535439B2 | 5 |
| US10294583B2 | 5 |
What Percentage of Sumco Corporation US Patent Applications were Granted?
Sumco Corporation (Excluding its subsidiaries) has filed 795 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 556 have been granted leading to a grant rate of 77.65%.
Below are the key stats of Sumco Corporation patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Sumco Corporation?
| Law Firm | Total Applications | Success Rate |
| Greenblum & Bernstein | 434 | 77.87% |
| Law Office Of Katsuhiro Arai | 50 | 93.02% |
| Clark & Brody | 47 | 65.96% |
| Christensen O Connor Johnson Kindness | 45 | 61.90% |
| Pillsbury Winthrop Shaw Pittman | 44 | 86.36% |
| Kolisch Hartwell | 40 | 80.00% |
| Sughrue Mion | 25 | 72.00% |
| Troutman Pepper Hamilton Sanders | 23 | 91.30% |
| Oblon Mcclelland Maier & Neustadt | 17 | 100.00% |
| Buckley Maschoff & Talwalkar | 7 | 100.00% |