Dorf Ketal Chemicals has a total of 811 patents globally, out of which 601 have been granted. Of these 811 patents, more than 80% patents are active. The United States Of America is where Dorf Ketal Chemicals has filed the maximum number of patents, followed by Europe (EPO) and India. Parallelly, India seems to be the main focused R&D centre and India is the origin country of Dorf Ketal Chemicals.
Dorf Ketal Chemicals was founded in 1992 and is an India-based global specialty chemical company specializing in innovative chemical solutions for the oil & gas, refining, and petrochemical industries. The company develops specialty chemicals and process technologies that improve industrial efficiency, performance, and sustainability.
In May 2026, Dorf Ketal acquired the Water Treatment Business of Vasu Chemicals LLP, marking its entry into India’s industrial water treatment market The acquisition marks an important strategic step for Dorf Ketal, broadening its presence beyond oil & gas chemicals into industrial water treatment. It also reinforces the company’s sustainability-focused portfolio and positions it to benefit from the growing demand for water management solutions.
Do read about some of the most popular patents of Dorf Ketal Chemicals which have been covered by us in this article and also you can find Dorf Ketal Chemicals patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Dorf Ketal Chemicals patent portfolio.
How many patents does Dorf Ketal Chemicals have?
Dorf Ketal Chemicals has a total of 811 patents globally. These patents belong to 158 unique patent families. Out of 811 patents, 136 patents are active.
How Many Patents did Dorf Ketal Chemicals 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.
| Years | Application Year Count | Granted Publication Year Count |
| 2026 | – | 21 |
| 2025 | 1 | 22 |
| 2024 | 13 | 31 |
| 2023 | 29 | 30 |
| 2022 | 24 | 33 |
| 2021 | 22 | 47 |
| 2020 | 19 | 63 |
| 2019 | 36 | 38 |
| 2018 | 69 | 34 |
| 2017 | 34 | 41 |
How many Dorf Ketal Chemicals patents are Alive/Dead?
Worldwide Patents
How Many Patents did Dorf Ketal Chemicals File in Different Countries?
Countries in which Dorf Ketal Chemicals Filed Patents
| Country | Patents |
| United States Of America | 81 |
| Europe (EPO) | 51 |
| India | 47 |
| Canada | 44 |
| China | 40 |
| Japan | 40 |
| South Korea | 40 |
| Brazil | 38 |
| Singapore | 35 |
| Australia | 32 |
| Malaysia | 30 |
| Indonesia | 26 |
| Poland | 26 |
| South Africa | 24 |
| Thailand | 23 |
| Mexico | 22 |
| Spain | 20 |
| Russia | 17 |
| Taiwan | 17 |
| Philippines | 16 |
| Viet Nam | 16 |
| Colombia | 11 |
| Croatia | 11 |
| Argentina | 9 |
| Hungary | 8 |
| Ireland | 8 |
| Turkey | 8 |
| Denmark | 6 |
| Portugal | 6 |
| Romania | 3 |
| Austria | 2 |
| Germany | 2 |
| Norway | 2 |
| Serbia | 2 |
| Africa | 1 |
| Lithuania | 1 |
| New Zealand | 1 |
| Saudi Arabia | 1 |
Where are Research Centres of Dorf Ketal Chemicals Patents Located?
10 Best Dorf Ketal Chemicals Patents
WO2008155569A1 is the most popular patent in the Dorf Ketal Chemicals portfolio. It has received 16 citations so far from companies like Johnson Matthey, Basf and Bayer Materialscience.
Below is the list of 10 most cited patents of Dorf Ketal Chemicals
| Publication Number | Citation Count |
| WO2008155569A1 | 16 |
| WO2007003966A1 | 15 |
| US9090837B2 | 12 |
| US8766027B1 | 11 |
| US9115319B2 | 10 |
| JP2010530917A | 10 |
| WO2014030131A1 | 9 |
| US8679324B2 | 8 |
| WO2017001957A1 | 8 |
| WO2010023628A1 | 7 |
What Percentage of Dorf Ketal Chemicals US Patent Applications were Granted?
Dorf Ketal Chemicals has filed 133 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 116 have been granted leading to a grant rate of 95.08 %.
Below are the key stats of Dorf Ketal Chemicals patent prosecution at the USPTO.
Which Law Firms are managing US Patents for Dorf Ketal Chemicals ?
| Law Firm | Total Applications | Success Rate |
| Conley Rose P C | 53 | 98.08% |
| Berg Hill Greenleaf Ruscitti Llp | 37 | 86.21% |
| Blank Rome Llp Houston General | 12 | 100.00% |
| Sheridan Ross Pc | 10 | 100.00% |
| Heslin Rothenberg Farley & Mesiti Pc | 5 | 100.00% |
| Godfrey & Kahn S C | 2 | 100.00% |
| Pillsbury Winthrop Shaw Pittman Llp | 2 | 100.00% |
| Hogan Lovells Us Llp | 1 | 100.00% |
| Jones Day | 1 | 100.00% |
| Sughrue Mion Pllc | 1 | 100.00% |
What are Dorf Ketal Chemicals key innovation segments?
What Technologies are Covered by Dorf Ketal Chemicals?
The chart below distributes patents filed by Dorf Ketal Chemicals in different countries on the basis of the technology protected in patents. It also represents the markets where Dorf Ketal Chemicals thinks it’s important to protect particular technological inventions.
R&D Focus: How has Dorf Ketal Chemicals search focus changed over the years?
EXCLUSIVE INSIGHTS COMING SOON!
Interested in knowing about the areas of innovation that are being protected by Dorf Ketal Chemicals?
