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Your search for "patent" returned 710 results
Who invented the sleeper sofa?
science.howstuffworks.com/innovation/everyday-innovations/who-invented-the-sleeper-sofa.htm
Ever wondered who invented the sleeper sofa? Check out the long, illustrious history of the sleep sofa invention.
Nearly Every English Word Is Trademarked
people.howstuffworks.com/almost-every-word-is-now-trademarked.htm
How could we run out of trademarked words? It sounds impossible, but it's growing more and more likely.
How Daylighting Devices Work
home.howstuffworks.com/home-improvement/construction/green/daylighting-device.htm
Daylighting devices are flexible inventions that can channel sunlight to use instead of electric lighting. Learn more about daylighting devices.
How does an Indiglo watch work?
electronics.howstuffworks.com/gadgets/clocks-watches/question296.htm
When I push a button on my Indiglo watch, the entire face emits a green light. How does that work?
10 Trade Secrets We Wish We Knew
money.howstuffworks.com/10-trade-secrets.htm
Trade secrets are often locked away in corporate vaults, making their owners a fortune. Which trade secrets are the stuff of legend?
Thank Goodness for Retractable Cords, Right?
science.howstuffworks.com/thank-goodness-for-retractable-cords-right.htm
They keep our miles and miles of unruly cords untangled and out of the way. But how do they work?
How can an egg carton claim that the contained eggs have less fat and more vitamin E?
health.howstuffworks.com/wellness/food-nutrition/vitamin-supplements/question304.htm
I recently bought a carton of eggs that claimed, "These eggs are high in Vitamin E, contain 100 mg of Omega 3, and have 25% less saturated fat than regular eggs." How can you get chickens to lay these special eggs? And how can you tell which eggs have these properties without cracking them open?
How Much Do You Know About the First Automobiles?
play.howstuffworks.com/quiz/how-much-do-you-know-the-first-automobiles
By some estimates, there are nearly 1 billion cars around the world, helping to accelerate economies and cultures in countless ways. How much do you know about early automotive history?
10 New Uses for Old Inventions
science.howstuffworks.com/innovation/repurposed-inventions/10-new-uses-for-old-inventions.htm
You think you really know an invention until -- whammo -- someone comes up with a new use for it. Ointment that soothes tired cow teats and treats baldness? Who would have thought?
How to Treat Constipation with Traditional Chinese Medicine
Traditional Chinese medicine depends primarily on herbal remedies for the treatment of constipation, with some acupuncture as needed. Learn more.