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CFD Patents


Computational Fluid Dynamics allows for expeditious investigation of new ideas involving fluid flow in engineering, science and technology - efficiently both in cost and time. Time is of essence in patents. Concepts can be studied, modeled, simulated, analyzed, researched and developed, and submitted to the Patent Office faster and better with CFD. If you have any need to analyze your idea with CFD let us know.  

Interesting fluid flow, aerodynamics patents
Patents related to Fluid Dynamics, Aerodynamics, Hydrodynamics:
Vortex Generator Drag reducing surface

film cooling swirl combustion

What is a patent?
A patent is a type of property right. It gives the patent holder the right, for a limited time, to exclude others from making, using, offering to sell, selling, or importing into the United States the subject matter that is within the scope of protection granted by the patent. (USPTO)

How to file a patent?
The best place to start is to look up USPTO.gov pages specifically:
A Guide to Filing A Non-Provisional (Utility) Patent Application
In a nutshell all you have to do is to describe your invention in detail following the USPTO guidlines.
Your patent filing should include:  title,  cross-reference to related applications, abstract, background, summary and detailed description of inventions, claims and drawings.

When you file with the USPTO, you have two options: you can  file  either  a provisional or regular patent application.

What is Provisional Patent Application (PPA)?
A PPA  allows you to claim patent pending status for the invention. You need a detailed description of the invention, and Basic filing fee - Design can be as low as $110-$220.  Once the application is filed, the inventor has exactly one year to complete an RPA or lose the right to do so.

What is regular patent application (RPA)?
RPA requires more information, and is far more costly (a few thousand). After the USPTO acknowledges receiving RPO, a patent examiner is assigned to the file and the waiting period begins. The patent application process can take a few years  before final decision is made whether to award or deny a patent.

Filling Provisional Patent Application - Easy Simple Steps

Electronic Filing System or EFS-Web is the United States Patent and Trademark Office’s (USPTO’s) Web-based patent application and document submission solution. A provisional application must include:
  • Cover Sheet, e.g. form PTO/SB/16Instructions [DOC].
  • Application Data Sheet 37 CFR 1.76 (Instructions [DOC] )
  • Drawings
  • Specification of description of the invention. “Specification” is the most important part of the patent application and consists of  description and claims. In "Specification" an inventor  specifies or describes machine or process and their relationship to previous, similar patents and technology.
  • CD’s, others
Once an inventor has all the necessary documents ready EFS application process guides through the following steps:
  • Application Data (name, address, title of invention)
  • Attach Documents (Application Data Sheet, Drawings, Description etc)
  • Review documents
  • Calculate fees,
  • Confirm and Submit
  • Pay Fees
  • Receipt
Overall very easy, straightforward and relatively inexpensive process. If you need help you might call the Patent Electronic Business Center at (866) 217-9197 or e-mail EBC@uspto.gov . You might also want to check following helpful links offering additional explanations:

Intellectual property (IP) is a term referring to a number of distinct types of legal monopolies over creations of the mind, both artistic and commercial, and the corresponding fields of law.[1] Under intellectual property law, owners are granted certain exclusive rights to a variety of intangible assets, such as musical, literary, and artistic works; discoveries and inventions; and words, phrases, symbols, and designs. Common types of intellectual property include copyrightstrademarkspatentsindustrial design rights and trade secrets in some jurisdictions. (source Wikipedia)

How to make money from your Patent?
Patent commercialization can be done through licensing, assingnment, royalities or patent rights can be sold.

Popular US Patent RSS Feeds
Industrial: Refrigeration  Measuring and Testing  Pumps
Energy: Power plants  Radiant  Heat-exchange  Fuel Cells 
Chemistry:  Liquid Purification  Fluid diffusion
Engines: Combustion   Gas separation 
Popular US Application RSS Feeds
Industrial: Refrigeration  Measuring and Testing  Pumps
Energy: Power plants  Radiant  Heat-exchange  Fuel Cells 
Chemistry:  Liquid Purification  Fluid diffusion
Engines: Combustion  Gas separation 

Get DOE patents news via  RSS feed  RSS News Feed

Stay up to date with the latest patents RSS feed from Google:

How to search for latest patents that are not yet available on google.com/patents ?
Search or browse to find patent number, for example
by inventor name or other search pattern
Copy the number  20090222187,  go to
and search or just replace #.pdf with the correct defining number:
Enjoy full pdf document that can be viewd and printed.

How to view patents on uspto.gov?
Yes, it is puzzling to have US Patent Office website (http://uspto.gov/) use plugins that do not work on most computers. Anyway, there is a relatively simple workaround, just use Apple web-browser Safari.

Expiring Patents
General rules of patent expiration in USA:
  • Patents filed in USA after June 8, 1995 expire 20 years from the date of filing.
  • Patents filed prior to June 8, 1995 expire 17 years from the date of issue, or 20 years from the first non-provisional patent application in the family - whichever is later.
Search expiring patents:
Patents FAQ

Patent News

Patent Links - How to file a Patent
Google.com/patents  google patents search
Patent Alert  inventions recently patented in the United States
Uspto.gov/web/offices/pac/doc/general/index.html   patents
USPTO.gov/web/offices/com/iip/index.htm US Patent and Trademark Office Inventor Resources Page
IP-watch.org/   Intellectual Property laws, news and analysis
Aipla.org  American Intellectual Property Law Association
Wipo.org   World Intellectual Property Organization
USPTO.gov/web/patents/howtopat.htm   how to file application for patent (1)
Lesi.org   Licensing Executives Society International
Autm.org  Association of University Technology Managers
European Intellectual Property Association - Online access to inventions and patent information
European-patent-office.org  European Patent Office
IPO.org  Intellectual Property Owners Association
HowStuffWorks: How Patents Work  basic information on patents


International Patent Offices

  1. Australian Patent Office
  2. Austrian Patent Office
  3. Belgian Patent Office
  4. Benelux Trademark Office
  5. Brazilian Patent Office
  6. Canadian Intellectual Property Office
  7. Czech Patent Office
  8. Chinese Patent Office
  9. Croatian Patent Office
  10. Cuban Patent Office
  11. Danish Patent Office
  12. European Patent Office
  13. Finnish Patent Office
  14. French Patent Office
  15. Georgian Patent Office
  16. German Patent Office
  17. Greek Industrial Property Organisation
  18. Hong Kong Patent Office
  19. Hungarian Patent Office
  20. Iceland Patent Office
  21. Indian Patent Office
  22. Indonesian Patent Office
  23. Irish Patent Office
  24. Israel Patent Office
  25. Italian Patent Office
  26. Japanese Patent Office
  27. Korean Patent Office
  28. Lithuanian Patent Office
  29. Luxembourg Patent Office
  30. Macedonian Patent Office
  31. Malaysian Intellectual Property Division
  32. Mexican Patent Office
  33. Monaco Patent Office
  34. Netherlands Patent Office
  35. New Zealand Patent Office
  36. Norwegian Patent Office
  37. Peruvian Intellectual Property Office
  38. Philippines Patent Office
  39. Polish Patent Office
  40. Portuguese Patent Office
  41. Romanian Patent Office
  42. Russian Patent Office
  43. Singaporean Patent Office
  44. Slovak Republic Patent Office
  45. Slovenian Patent Office
  46. Spanish Patent Office
  47. Swedish Patent Office
  48. Swiss Institute of Intellectual Property
  49. Taiwan Patent Office
  50. Thai Patent Office
  51. United Kingdom Patent Office
  52. United States Patent Office
  53. World Intellectual Property Organisation (WIPO)
  54. World Trade Organisation (WTO)

Drag reduction Patents

5026232 Boundary layer devices Jun 25, 1991
5069403 Drag reduction article Dec 3, 1991
5114099 Surface for low drag in turbulent flow May 19, 1992
5133516 Drag reduction article Jul 28, 1992
5289997 Apparatus and method for reducing drag on bodies moving through fluid Mar 1, 1994
5327727 Micro-grooved heat transfer combustor wall Jul 12, 1994
5337568 Micro-grooved heat transfer wall Aug 16, 1994
5386955 Control of fluid flow Feb 7, 1995
5445095 Polymer/riblet combination for hydrodynamic skin friction reduction Aug 29, 1995
5653110 Film cooling of jet engine components Aug 5, 1997
5860626 Surface of a body exposed to circumfluent fluid Jan 19, 1999
5971033 Profiled tube, corrugated hose or the like elongate portion with mutually parallel peripheral grooves Oct 26, 1999
5971326 Surface for a wall subject to a turbulent flow showing a main direction of flow Oct 26, 1999
6193191 Modified surface for reducing the turbulences of a fluid and transportation process Feb 27, 2001
6345791 Streamwise variable height riblets for reducing skin friction drag of surfaces Feb 12, 2002
6545842 Disc drive actuator assembly drag reduction features Apr 8, 2003
6682021 System and method for actively manipulating and controlling fluid flow over a surface Jan 27, 2004
6729846 Reduction in the noise produced by a rotor blade of a wind turbine May 4, 2004
7059662 Post pressurizing material treatment for bodies moving through fluidJ un 13, 2006
7108485 Reduction in the noise produced by a rotor blade of a wind turbine Sep 19, 2006
7357351 Linear shock wave absorber Apr 15, 2008
7357442 Post pressurizing material treatment for bodies moving through fluid Apr 15, 2008
7430097 Actuator with fluid-redirecting and drag-reducing surface features Sep 30, 2008

Other interesting patents and links:
flow-influencing devices to reduce air resistancee
device for reducing the aerodynamic drag of ground
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