Patent Auction lists patented inventions for sale or license

Patent Auction.com is an online marketplace for inventions protected by patent rights. We list patents for sale or license in all fields of industry.

Are you looking for new products, new ideas, new markets ? Feel free to browse through our entire database of patents, starting from the categories below and if you have questions about any specific invention, you can contact the inventor directly through the site.

Are you looking to sell your patent or bring your invention to the next level ? Inventors can list their patented inventions (or patent pending). Listing your patent on Patent Auction is free and very easy. More...

PatentAuction.com (previously known as FreePatentAuction.com) has been providing free patent listings since 2004 and will continue doing so in the future. We are the oldest and largest patent listings platform. We have put in relation thousands of inventors and potential buyers.

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Newly listed patents

Listing created:

Picture for patent available 1. Latrina-Pit toilet treatment
    (46 views)
19 hours ago
Picture for patent available 2. Pharmaceutic Medicinal Value Calcs-Phytomedicine & Essential Oils
    (42 views)
19 hours ago
 3. SEMPIOLHO-Anti-Louse and Hair-loss treatment
    (39 views)
19 hours ago
Picture for patent available 4. the tailgate saver
    (41 views)
24 hours ago
 5. Screenless Mobile Computing Device
    (69 views)
1 day ago
Patent document available 6.  Plastic shredder
    (109 views)
2 days ago
Patent document available 7.  System for customizing settings and sounds for vehicle
    (100 views)
2 days ago
Picture for patent availablePatent document available 8. Radio Control System for Aircraft and Drones
    (64 views)
2 days ago
Patent document available 9.  ELECTRONIC PAYMENT AND ASSOCIATED SYSTEMS
    (82 views)
2 days ago
 10. FORTRESS 5 hurricane protection home/building harness
    (71 views)
2 days ago
 11. foldable electrically heated car cover
    (109 views)
3 days ago
Picture for patent available 12. compressed air engine
    (120 views)
3 days ago
Patent document available 13.  A heating and cooling system
    (139 views)
5 days ago
Patent document available 14.  A fuel tank cover assembly
    (127 views)
5 days ago
Patent document available 15.  A sliding roof mechanism for commercial vehicles
    (128 views)
5 days ago


Most viewed patents

Listing created:

Picture for patent available 1. Micro Mirrors Shield Protecting Earth from Global Warming
    (26815 views)
2 years ago
Picture for patent available 2. Automotive Air Flow Tube
    (11470 views)
1 year ago
Picture for patent availablePatent document available 3. Sail venting technology used on BMW Oracle racing Americas Cup
    (9686 views)
4 months ago
Picture for patent availablePatent document available 4. TIRE-HANDLING DEVICE
    (9502 views)
1 year ago
Picture for patent availablePatent document available 5.  THE PHYSICS OF PERMANENT MAGNET MOTORS
    (9397 views)
9 months ago
Picture for patent availablePatent document available 6. CLOTHING IRON HOLDER WITH WATER RESERVOIR
    (8671 views)
1 year ago
Picture for patent available 7. Supercharger Kit for 50cc motorcycle, bike, moped, scooter
    (7029 views)
2 years ago
Picture for patent available 8. FREE COMPRESSION TUBE FOR ROCKETS
    (6718 views)
2 years ago
Patent document available 9. All Jasim patents 8112601, 7780416 Oil, Hackers, windmill, piracy
    (6213 views)
1 year ago
Picture for patent availablePatent document available 10. Pet exerciser - Tested for over 10 years! Solid, proven, design.
    (5204 views)
1 year ago
Picture for patent availablePatent document available 11. IN A MINUTE,CAN A DOOR BE UPDATED TO A FINGERPRINT UNLOCKED DOOR?
    (5189 views)
7 months ago
Picture for patent availablePatent document available 12. BELT CLASP (VARIANTS)
    (4229 views)
2 years ago
Picture for patent available 13. Billt-Taper Hand held tape dispenser with belt clip w/pricing
    (4216 views)
5 months ago
Picture for patent availablePatent document available 14. MR1 - the newly patented DIY-friendly car lift
    (3845 views)
2 years ago
Picture for patent availablePatent document available 15. Toroidal motor and waste heat energy recovery systems
    (3726 views)
12 months ago
Picture for patent availablePatent document available 16. DENTAL FLOSS HOLDER , Flosser
    (3232 views)
2 years ago
Picture for patent availablePatent document available 17. The ANY Key
    (2863 views)
2 years ago
Picture for patent availablePatent document available 18. Patented, Remote Controlled, Low Voltage Window Candles
    (2788 views)
2 years ago
Picture for patent availablePatent document available 19. Optical Illusion Wear
    (2662 views)
2 years ago
Picture for patent available 20. Personal cigarette receptacle
    (2625 views)
2 years ago
Picture for patent availablePatent document available 21.  Concealed Carry --- Trigger SAFETY CLIP
    (2541 views)
1 year ago
Picture for patent availablePatent document available 22.  BIOPSY NEEDLE - SOFT TISSUE - END CUTTING
    (2422 views)
1 year ago
Picture for patent availablePatent document available 23. Hi efficiency DIP TUBE for WATER HEATER
    (2421 views)
1 year ago
Picture for patent availablePatent document available 24.  REVOLVER SAFETY - Selectable Lockable --
    (2204 views)
1 year ago
Picture for patent availablePatent document available 25. APPARATUS FOR CONVERTING WAVE, SOLAR AND WIND ENERGY
    (2112 views)
2 years ago
Picture for patent availablePatent document available 26. A GARBAGE BAG & RECYCLE BIN COVER................new price.
    (2054 views)
2 years ago
Picture for patent availablePatent document available 27.  Ultra sonic 3-Diminsional CASTING with COMPOSITES
    (2040 views)
1 year ago
Picture for patent available 28. TEJJ Cycle
    (1910 views)
1 year ago
Picture for patent availablePatent document available 29. EzyTote Multi-Purpose Handle
    (1843 views)
2 years ago
Picture for patent availablePatent document available 30. Web-Based Marketplace With Emotion Sensors & Other Hardware
    (1773 views)
2 years ago
Picture for patent available 31. Wristband Remote Controller - Controls Music All In The Wrist!
    (1672 views)
2 years ago
Picture for patent availablePatent document available 32. A recycling holder that uses and reuses bags to sort items
    (1625 views)
2 years ago
Picture for patent availablePatent document available 33. Versatile Paint Trim Tray with Brush Wipe and Rest Crossbar
    (1619 views)
1 year ago
Picture for patent available 34. IDOL ENERGY - idolmotor
    (1593 views)
1 year ago
Picture for patent availablePatent document available 35. EASY Solution for Women with Thin Hair - It's BETTER Than a WIG!
    (1573 views)
2 years ago