Delavan has a total of 550 patents globally, out of which 323 have been granted. Of these 550 patents, more than 47% patents are active. The Germany is where Delavan has filed the maximum number of patents, followed by Europe and Austria. Parallelly, The United States of America seems to be the main focused R&D center and also England is the origin country of Delavan.
Delavan was founded in 1963. The company’s line of business includes manufacturing aircraft engines and engine parts.
Do read about some of the most popular patents of Delavan which have been covered by us in this article and also you can find Delavan patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Delavan patent portfolio.
How many patents does Delavan have?
Delavan has a total of 550 patents globally. These patents belong to 257 unique patent families. Out of 550 patents, 261 patents are active.
How Many Patents did Delavan 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 | Delavan Applications Filed | Delavan Patents Granted |
| 2023 | 1 | 5 |
| 2022 | 7 | 20 |
| 2021 | 2 | 38 |
| 2020 | 13 | 71 |
| 2019 | 27 | 38 |
| 2018 | 50 | 29 |
| 2017 | 51 | 16 |
| 2016 | 91 | 13 |
| 2015 | 24 | 3 |
| 2014 | 41 | 8 |
| 2013 | 23 | 16 |
| 2012 | 25 | 20 |
How many Delavan patents are Alive/Dead?
Worldwide Patents 
How Many Patents did Delavan File in Different Countries?
Countries in which Delavan Filed Patents
| Country | Patents |
| Germany | 119 |
| Europe | 108 |
| Austria | 99 |
| United States Of America | 91 |
| United Kingdom | 57 |
| Japan | 29 |
| France | 14 |
| Australia | 7 |
| Canada | 4 |
| New Zealand | 3 |
| Mexico | 2 |
| Israel | 2 |
| India | 2 |
| China | 1 |
| Spain | 1 |
| Korea (South) | 1 |
| Denmark | 1 |
| Sweden | 1 |
Where are Research Centers of Delavan Patents Located?
10 Best Delavan Patents
US6755024B1 is the most popular patent in the Delavan portfolio. It has received 176 citations so far from companies like Dial Discoveries Llc, Pratt & Whitney Canada Corp and Alstom Technology Ltd.
Below is the list of 10 most cited patents of Delavan:
| Publication Number | Citation Count |
| US6755024B1 | 176 |
| US6688534B2 | 105 |
| US20110247590A1 | 59 |
| US6539724B2 | 51 |
| US6630244B1 | 48 |
| US6863228B2 | 46 |
| US20090255258A1 | 36 |
| US20090077945A1 | 35 |
| WO2009039142A2 | 28 |
| US20070251663A1 | 25 |
How many inventions of other companies were rejected due to Delavan patents?
The statistics below share strategic R&D insights. It tells the companies that were trying to protect inventions similar to Delavan invention. They couldn’t because Delavan had protected those before them. Examiners at the USPTO referred 32 Delavan patents in 167 rejections (35 USC § 102 or 35 USC § 103 types). The top citing companies in the Delavan patent portfolio are General Electric, Raytheon Technologies Corporation and Collins Engine Nozzles. List of the Companies whose Patents were rejected citing Delavan –
| Company | Number of Patent Applications that faced Rejection Citing Delavan Patents | Number of Rejections (102 & 103) |
| General Electric | 13 | 29 |
| Raytheon Technologies Corporation | 10 | 20 |
| Collins Engine Nozzles | 9 | 21 |
| Siemens Energy | 4 | 9 |
| Utc Aerospace Systems | 3 | 4 |
| Rolls-Royce Deutschland | 2 | 2 |
| Rtx Corp | 2 | 4 |
| Rsm Electron Power | 2 | 6 |
| Ansaldo Energia | 2 | 6 |
| Applied Materials | 2 | 3 |
Count of 102 and 103 Type Rejections based on Delavan Patents
Top Delavan Patents used in Rejecting Most Patent Applications
| Patent Number | Count of Rejected Applications |
| US6755024B1 | 13 |
| US20110247590A1 | 8 |
| US7766251B2 | 5 |
| US10207325B2 | 5 |
| US8074895B2 | 4 |
| US20090077945A1 | 4 |
| US20080217435A1 | 4 |
| US20090255258A1 | 4 |
| US6630244B1 | 3 |
| US20070251663A1 | 3 |
| US6863228B2 | 3 |
| US6688534B2 | 3 |
| US7043922B2 | 3 |
| US7621132B2 | 2 |
| US20140367494A1 | 2 |
What Percentage of Delavan US Patent Applications were Granted?
Delavan (Excluding its subsidiaries) has filed 44 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 38 have been granted leading to a grant rate of 90.48%. Below are the key stats of Delavan patent prosecution at the USPTO. 
Which Law Firms Filed Most US Patents for Delavan?
| Law Firm | Total Applications | Success Rate |
| Locke Lord | 14 | 91.67% |
| Barnes & Thornburg | 6 | 100.00% |
| Cummings & Lockwood | 3 | 100.00% |
| Holland & Hart | 1 | 100.00% |
| Edwards & Angell | 2 | 50.00% |
| Allegretti Newitt Witcoff & Mc | 1 | 100.00% |
| Howard S Reiter | 1 | 100.00% |
| Daniel J Schlue | 1 | 100.00% |
| Exxonmobil Technology And Engineering Company | 1 | 0.00% |
| Gordon G Waggett | 1 | 100.00% |
What are Delavan key innovation segments?
What Technologies are Covered by Delavan?
The chart below distributes patents filed by Delavan in different countries on the basis of the technology protected in patents. It also represents the markets where Delavan thinks it’s important to protect particular technology inventions.
R&D Focus: How has Delavan search focus changed over the years?
EXCLUSIVE INSIGHTS COMING SOON!