ExOne has a total of 356 patents globally, out of which 782 have been granted. Of these 356 patents, more than 56% patents are active. United States of America is where ExOne has filed the maximum number of patents, followed by Europe and Germany. Parallelly, United States of America seems to be the main focused R&D centre and also is the origin country of ExOne.
ExOne was founded in the year 2005. ExOne Corporation serves industrial clients on a global scale by selling printed goods and three-dimensional printing equipment. The Company’s primary business is producing and selling 3D printing equipment and using its own 3D printers to produce things for its clients according to specifications.
Do read about some of the most popular patents of ExOne which have been covered by us in this article and also you can find ExOne patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over ExOne patent portfolio.
How many patents does the founder and the CEO of ExOne have?
The founder Kent Rockwell have 0 patents and CEO John Hartner have 0 patents.
How many patents does ExOne have?
ExOne has a total of 356 patents globally. These patents belong to 105 unique patent families. Out of 356 patents, 202 patents are active.
How Many Patents did ExOne 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 | ExOne Applications Filed | ExOne Patents Granted |
| 2023 | – | 3 |
| 2022 | 2 | 17 |
| 2021 | 5 | 21 |
| 2020 | 33 | 20 |
| 2019 | 20 | 21 |
| 2018 | 26 | 18 |
| 2017 | 22 | 16 |
| 2016 | 13 | 8 |
| 2015 | 87 | 4 |
| 2014 | 32 | 9 |
| 2013 | 5 | 4 |
| 2012 | 2 | 4 |
| 2011 | 4 | 9 |
How many ExOne patents are Alive/Dead?
How Many Patents did ExOne File in Different Countries?
Countries in which ExOne Filed Patents
| Country | Patent |
| United States Of America | 83 |
| Europe | 56 |
| Germany | 39 |
| Japan | 34 |
| China | 20 |
| Korea (South) | 20 |
| Canada | 15 |
| Spain | 11 |
| Russia | 5 |
| India | 4 |
| Norway | 3 |
| Italy | 2 |
| Poland | 2 |
| Austria | 2 |
| Croatia | 1 |
| Malta | 1 |
| Eurasia | 1 |
| Mexico | 1 |
Where are Research Centres of ExOne Patents Located?
10 Best ExOne Patents
US7204684B2 is the most popular patent in the ExOne portfolio. It has received 188 citations so far from companies like Voxeljet, Arcam and HP.
Below is the list of 10 most cited patents of ExOne:
| Publication Number | Citation Count |
| US7204684B2 | 188 |
| US7799253B2 | 155 |
| US7004222B2 | 113 |
| US7531117B2 | 98 |
| WO2009017648A1 | 94 |
| US8741194B1 | 86 |
| US7137431B2 | 84 |
| US6746506B2 | 80 |
| US7807077B2 | 77 |
| US7748971B2 | 72 |
How many inventions of other companies were rejected due to ExOne patents?
The statistics below share strategic R&D insights. It tells the companies that were trying to protect inventions similar to ExOne invention. They couldn’t because ExOne had protected those before them.
Examiners at the USPTO referred 47 ExOne patents in 332 rejections (35 USC § 102 or 35 USC § 103 types).
The top citing companies in the ExOne patent portfolio are HP, Voxeljet and General Electric.
List of the Companies whose Patents were rejected citing ExOne –
| Company | Number of Patent Applications that faced Rejection Citing ExOne Patents | Number of Rejections (102 & 103) |
| HP | 18 | 25 |
| Voxeljet | 14 | 49 |
| General Electric | 8 | 18 |
| Boeing | 7 | 8 |
| Desktop Metal | 6 | 14 |
| Concept Laser | 4 | 9 |
| Eos | 3 | 6 |
| Rolls-Royce | 3 | 3 |
| Epson | 3 | 8 |
| Technology Research Association For Future Additive | 2 | 5 |
Count of 102 and 103 Type Rejections based on ExOne Patents
Top ExOne Patents used in Rejecting Most Patent Applications
| Patent Number | Count of Rejected Applications |
| US7807077B2 | 19 |
| US7879393B2 | 12 |
| US6746506B2 | 9 |
| US20160332373A1 | 7 |
| US9833955B2 | 7 |
| US7004222B2 | 7 |
| US20160243621A1 | 6 |
| US8568124B2 | 5 |
| US20090007724A1 | 5 |
| US7461684B2 | 5 |
| US20070175872A1 | 4 |
| US7799253B2 | 4 |
| US7748971B2 | 4 |
| US20070029698A1 | 4 |
| US6585930B2 | 4 |
What Percentage of ExOne US Patent Applications were Granted?
ExOne (Excluding its subsidiaries) has filed 34 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 18 have been granted leading to a grant rate of 62.07%.
Below are the key stats of ExOne patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for ExOne?
| Law Firm | Total Applications | Success Rate |
| Exone Operating | 28 | 60% |
| Lerner David Littenberg | 3 | 100% |
| Ip & Internet Law | 2 | 0% |
| Vorys Sater Seymour And Pease | 1 | 100% |