Maxell has a total of 20785 patents globally, out of which 11035 have been granted. Of these 20785 patents, more than 41% patents are active. Japan is where Maxell has filed the maximum number of patents, followed by United States of America and China. Parallelly, Japan seems to be the main focused R&D centre and also is the origin country of Maxell.
Maxell was founded in the year 1969. Company manufactures and distributes consumer electronic products. The Company produces batteries, electroforming products, display equipment, projectors and data storage products and also produces energy products, industrial materials and other products. As of January 2023, the market cap of Maxell is $ 484.7 Million.
Do read about some of the most popular patents of Maxell which have been covered by us in this article and also you can find Maxell patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Maxell patent portfolio.
How many patents does the CEO of Maxell have?
The CEO Yoshiharu Katsuta has 0 patent.
How many patents does Maxell have?
Maxell has a total of 20785 patents globally. These patents belong to 12426 unique patent families. Out of 20785 patents, 8620 patents are active.
How Many Patents did Maxell 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 | Maxell Applications Filed | Maxell Patents Granted |
| 2023 | – | 14 |
| 2022 | 282 | 639 |
| 2021 | 378 | 541 |
| 2020 | 606 | 616 |
| 2019 | 802 | 602 |
| 2018 | 925 | 492 |
| 2017 | 890 | 447 |
| 2016 | 882 | 482 |
| 2015 | 850 | 419 |
| 2014 | 761 | 374 |
| 2013 | 789 | 157 |
| 2012 | 711 | 146 |
| 2011 | 798 | 887 |
How many Maxell patents are Alive/Dead?
How Many Patents did Maxell File in Different Countries?
Countries in which Maxell Filed Patents
| Country | Patents |
| Japan | 12103 |
| United States Of America | 3056 |
| China | 2200 |
| Korea (South) | 540 |
| Europe | 455 |
| Taiwan | 311 |
| Germany | 292 |
| Hong Kong (S.A.R.) | 174 |
| United Kingdom | 116 |
| Australia | 54 |
| Canada | 48 |
| Mexico | 40 |
| Singapore | 22 |
| Malaysia | 22 |
| India | 14 |
| Austria | 11 |
| Spain | 9 |
| Poland | 8 |
| Brazil | 7 |
| Italy | 5 |
| Indonesia | 5 |
| Philippines | 5 |
| Viet Nam | 4 |
| Turkey | 4 |
| Saudi Arabia | 4 |
| Switzerland | 3 |
| France | 3 |
| Argentina | 1 |
| Norway | 1 |
| South Africa | 1 |
| Thailand | 1 |
| Israel | 1 |
Where are Research Centres of Maxell Patents Located?
10 Best Maxell Patents
US20020091569A1 is the most popular patent in the Maxell portfolio. It has received 605 citations so far from companies like IBM, Mobitran and Microsoft.
Below is the list of 10 most cited patents of Maxell:
| Publication Number | Citation Count |
| US20020091569A1 | 605 |
| US6707436B2 | 540 |
| US6466202B1 | 506 |
| US6612488B2 | 482 |
| US7096486B1 | 326 |
| US6837438B1 | 293 |
| JP2011085733A | 256 |
| US6430498B1 | 250 |
| US20100164295A1 | 249 |
| US20130234530A1 | 237 |
How many inventions of other companies were rejected due to Maxell patents?
The statistics below share strategic R&D insights. It tells the companies that were trying to protect inventions similar to Maxell invention. They couldn’t because Maxell had protected those before them.
Examiners at the USPTO referred 1185 Maxell patents in 6949 rejections (35 USC § 102 or 35 USC § 103 types).
The top citing companies in the Maxell patent portfolio are Sony, Samsung and LG.
List of the Companies who’s Patents were rejected citing Maxell –
| Company | Number of Patent Applications that faced Rejection Citing Maxell Patents | Number of Rejections (102 & 103) |
| Sony | 158 | 445 |
| Samsung | 249 | 607 |
| LG | 78 | 273 |
| Epson | 77 | 129 |
| Canon | 74 | 130 |
| Panasonic | 107 | 195 |
| Sharp | 52 | 99 |
| Toshiba | 52 | 113 |
| Apple | 46 | 108 |
| Fujifilm | 35 | 66 |
Count of 102 and 103 Type Rejections based on Maxell Patents
Top Maxell Patents used in Rejecting Most Patent Applications
| Patent Number | Count of Rejected Applications |
| US6940494B2 | 46 |
| US6466202B1 | 24 |
| US20100066937A1 | 24 |
| US20070264577A1 | 22 |
| US7716604B2 | 20 |
| US20110199580A1 | 20 |
| US20090079863A1 | 18 |
| US7970058B2 | 17 |
| US7318322B2 | 17 |
| US7312791B2 | 17 |
| US20090067119A1 | 17 |
| US20070273787A1 | 17 |
| US20100073582A1 | 16 |
| US6612488B2 | 16 |
| US20110143183A1 | 15 |
What Percentage of Maxell US Patent Applications were Granted?
Maxell (Excluding its subsidiaries) has filed 2188 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 1922 have been granted leading to a grant rate of 97.02%.
Below are the key stats of Maxell patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Maxell?
| Law Firm | Total Applications | Success Rate |
| Mattingly & Malur | 437 | 95.13% |
| Antonelli Terry Stout & Kraus | 408 | 99.75% |
| Mcdermott Will & Emery | 338 | 96.76% |
| Kilpatrick Townsend & Stockton | 170 | 100.00% |
| Birch Stewart Kolasch & Birch | 148 | 89.68% |
| Staas & Halsey | 113 | 100.00% |
| Oliff | 105 | 95.92% |
| Volpe Koenig | 86 | 96.30% |
| Baker Botts | 66 | 92.42% |
| Brundidge & Stanger | 65 | 100.00% |