Patent Leaders from Across the Nation

Gone are the days where rapid innovation occurred solely in Silicon Valley. While California is still responsible for about 25% of new patents in the nation (the most of any state), many cities from coast to coast are industry leaders in innovation. Here are some cities that have been national leaders in a patent category for the filing of a utility patent (new invention/process) with the United States Patent and Trademark Office…


  • Utility patent leader for in the following industries: food, liquid purification, electric conductors and insulators.
  • Chicago is home to multiple household food brand: Kraft, Quaker Oats, and Wrigley.
  • The “Windy City” is also home to the largest wastewater treatment plant in the world.


  • Utility patent leader in internal-combustion engines, land-vehicle bodies and tops, and vehicle navigation.
  • It is no surprise that “Motor City” leads the country in many patent classes that involve cars or car parts. Between the years 2000 and 2011, Detroit was 10th in the nation in regards to the number of patents issued at over 25,000.


  • The “City of Brotherly Love” leads the following utility patent classes: organic compounds, synthetic resins or natural rubbers, and compositions.
  • Philadelphia is one of America’s headquarters in the field of chemistry. Many chemical companies are located in the Philadelphia area: DuPont, Dow Chemical, FMC and others

Other cities around the nation that are at the top of a patent class: St. Louis, MO (Plant Husbandry); Cincinnati, OH (Undertaking); Akron, OH (Tires and Wheels); Toledo, OH (Glass Manufacturing); Portland, OR (Shoes and Image Projectors); San Diego, CA (Telecommunications); Grand Rapids, MI (Power-Driven Conveyors); Milwaukee, WI (X-Ray or Gamma-Ray Systems/Devices).

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