Norfolk Southern Corporation has a total of 203 patents globally, out of which 144 have been granted. Of these 203 patents, more than 67% patents are active. Korea (South) is where Norfolk Southern Corporation has filed the maximum number of patents, followed by USA and China. Parallelly, Korea seems to be the main focused R&D center and USA is the origin country of Norfolk Southern Corporation.
Norfolk Southern Corporation was founded in 1982. Norfolk Southern Corporation provides rail transportation services. The Company transports raw materials, intermediate products, and finished goods primarily in the Southeast, East, and Midwest and, via interchange with rail carriers, to and from the rest of the United States. Norfolk Southern also transports overseas freight through several Atlantic and Gulf Coast ports. As of June 2022, Norfolk Southern Corporation has a market cap of $53.81 Billion.
Do read about some of the most popular patents of Norfolk Southern Corporation which have been covered by us in this article and also you can find Norfolk Southern Corporation patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Norfolk Southern Corporation patent portfolio.
How many patents does the CEO of Norfolk Southern Corporation have?
The CEO Michael J. Farrell has 0 patents.
How many patents does Norfolk Southern Corporation have?
Norfolk Southern Corporation has a total of 203 patents globally. These patents belong to 139 unique patent families. Out of 203 patents, 138 patents are active.
How Many Patents did Norfolk Southern 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 | Norfolk Southern Applications Filed | Norfolk Southern Patents Granted |
| 2011 | 24 | 1 |
| 2012 | 23 | 3 |
| 2013 | 17 | 23 |
| 2014 | 16 | 21 |
| 2015 | 19 | 9 |
| 2016 | 26 | 29 |
| 2017 | 9 | 9 |
| 2018 | 7 | 10 |
| 2019 | 4 | 3 |
| 2020 | 7 | 4 |
| 2021 | 18 | 13 |
| 2022 | – | 9 |
How many Norfolk Southern Corporation patents are Alive/Dead?
Worldwide Patents
How Many Patents did Norfolk Southern Corporation File in Different Countries?
Countries in which Norfolk Southern Corporation Filed Patents
| Country | Patents |
| Korea (South) | 126 |
| United States Of America | 30 |
| China | 8 |
| Japan | 8 |
| Canada | 6 |
| Taiwan | 5 |
| Mexico | 4 |
| Europe | 4 |
Where are Research Centers of Norfolk Southern Corporation Patents Located?
10 Best Norfolk Southern Corporation Patents
US6647891B2 is the most popular patent in the Norfolk Southern Corporation portfolio. It has received 86 citations so far from companies like General Electric, Tetra Tech Inc, and Georgetown Rail Equiptment Company.
Below is the list of 10 most cited patents of Norfolk Southern Corporation:
| Publication Number | Citation Count |
| US6647891B2 | 86 |
| US6823242B1 | 40 |
| US8342103B2 | 19 |
| US8136454B2 | 18 |
| KR1020110090491A | 18 |
| KR101628326B1 | 14 |
| US8386122B1 | 12 |
| US8640629B2 | 9 |
| KR101784780B1 | 9 |
| KR1020150078861A | 9 |
What Percentage of Norfolk Southern Corporation US Patent Applications were Granted?
Norfolk Southern Corporation (Excluding its subsidiaries) has filed 25 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 24 have been granted leading to a grant rate of 96.0%.
Below are the key stats of Norfolk Southern Corporation patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Norfolk Southern Corporation?
| Law Firm | Total Applications | Success Rate |
| Goodwin Procter Llp | 14 | 100.00% |
| Morris Manning & Martin Llp | 5 | 100.00% |
| Dykema Gossett Pllc | 2 | 100.00% |
| Hunton Andrews Kurth Llp | 2 | 50.00% |
| Fisherbroyles Llp | 1 | 100.00% |
| Jonn P Deluca | 1 | 100.00% |
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