Patent Auction lists patented inventions available for sale or license
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Patent Auction.com is an online marketplace for innovative ideas protected by patent rights.
The broad range of inventions for sale or license touches upon all fields of industry.
You can freely browse through our entire database, starting from the categories below.
If you have questions about any specific invention, you can contact the inventor directly through this website.
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Inventors can list their patented inventions (or patent pending) for free.
We encourage inventors from all countries to submit their inventions, provided that they have applied for patent protection.
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PatentAuction.com was previously known as "FreePatentAuction.com" and has been providing free patent listings since 2004.
Patent Categories
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Most viewed patents |
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![]() | 1. Multi-positional Sexual Intercourse Chair (61114 views) | To be negotiated | 2 years ago |
![]() | 2. ECO / GREEN Recyclers Raft swimming pool floats use POP btls (6372 views) | 75,000 $ | 1 year ago |
![]() | 3. DRYWALL (DIMPLER) TOOL *Profit Potential in (MILLIONS) Look! (6216 views) | 250,000 $ | 2 years ago |
![]() | 4. Vertical Axis Wind Turbine (5910 views) | To be negotiated | 1 year ago |
![]() | 5. Receipt Card Systems, Consumer Electronic Receipt Archiving (4936 views) | To be negotiated | 2 years ago |
![]() | 6. The Sexy Puff! new Bean bag chair (4820 views) | 500,000 € | 2 years ago |
![]() | 7. Kalashnikov (AK-47) Last Round Hold Open Kit (4764 views) | To be negotiated | 2 years ago |
![]() | 8. Dog Zip Line and Portable/Adjustable Dog Run for All Sizes (4523 views) | 50,000 $ | 1 year ago |
![]() | 9. Folding Boat Trailer (4006 views) | To be negotiated | 2 years ago |
![]() | 10. Superengine powered car runs over 200 miles per gallon. (3884 views) | To be negotiated | 2 years ago |
![]() | 11. Jet Ski Boat (3455 views) | 100,000 $ | 2 years ago |
![]() | 12. Denture Repair Kit (3319 views) | + 1 Million $ | 2 years ago |
![]() | 13. Make Millions With This T-shirt Saying! (it is copyrighted) (3244 views) | 200,000 $ | 1 year ago |
![]() | 14. idolmotor (3169 views) | To be negotiated | 9 months ago |
![]() | 15. condom applicator (2868 views) | To be negotiated | 2 years ago |
| 16. Free Electricity for your home or business (2362 views) | + 1 Million $ | 1 year ago | |
| 17. Rhodium Plating Solution (2321 views) | To be negotiated | 1 year ago | |
![]() | 18. Pulley-Gear System Powered by Permanent Magnets (2182 views) | 825,000 $ | 1 year ago |
| 19. FREE ENERGY MACHINE..... THE REAL DEAL (2175 views) | To be negotiated | 2 years ago | |
![]() | 20. Convertible Wind Surfing Board (Water Bike) (2140 views) | To be negotiated | 1 year ago |
![]() | 21. auto anti theft device (2123 views) | To be negotiated | 3 months ago |
![]() | 22. Green Tea Cigarette (2107 views) | To be negotiated | 2 years ago |
![]() | 23. THE WORLDS FIRST ANTI-SWAY BAR CONTROLLER KIT (2102 views) | To be negotiated | 2 years ago |
![]() | 24. reusable waterfill sandbags (1996 views) | To be negotiated | 1 year ago |
![]() | 25. RING BOTTLE OPENER (QUICK UP) (1983 views) | + 1 Million $ | 2 years ago |
![]() | 26. HIGH POWER ENERGY SAVING COMPACT FLUORESCENT LAMP (1906 views) | + 1 Million $ | 2 years ago |
![]() | 27. Pivoting Airline Tray Systems, a new tray table concept (1778 views) | To be negotiated | 2 years ago |
![]() | 28. Patented Fish Bone Removal Tool, US Patent No. 6,095,913 (1750 views) | To be negotiated | 1 year ago |
![]() | 29. Supercharger Kit for 50cc motorcycle, bike, moped, scooter (1738 views) | To be negotiated | 8 months ago |
![]() | 30. Paragen - Phenyl amide compounds (1729 views) | To be negotiated | 2 years ago |
| 31. Automobile Battery-Saver (1718 views) | To be negotiated | 2 years ago | |
![]() | 32. Pick Holder for Guitarists,The NeckPleck. (1665 views) | To be negotiated | 2 years ago |
![]() | 33. A WASP N HORNETS NEST KILLING MACHINE.. LASER TARGETED..R/C (1628 views) | To be negotiated | 1 year ago |
![]() | 34. bab-e-safe (1625 views) | 20,000 $ | 2 years ago |
![]() | 35. Pillow For Lying On Stomach - Face Down (1614 views) | 40,000 $ | 1 year ago |
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