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When we think of inventors, the image that comes to mind is usually that of a frazzled scientist toiling away in a lab, not celebrities pulled from the pages of Us Weekly. However, a number of well-known public figures hold patents for various innovations. Some are related to the work that made them famous, while others are offshoots of hobbies or just a single great idea. Here are a few of our favorite celebrity inventors. 1. JAMIE LEE CURTIS In 1987 Curtis designed and patented a disposable diaper that included a waterproof pocket that held baby wipes. She hasn't profited from her idea yet, though, since she refuses to license the patent until diaper companies make biodegradable products. womansday 2. EDDIE VAN HALEN Part of guitar wizard Eddie Van Halen's signature sound was his two-handed tapping technique, but letting all ten fingers fly while simultaneously holding up the guitar's neck could get a bit tricky. Van Halen came up with a novel way to get around this problem, though; he invented a support (top) that could flip out of the back of his axe's body to raise and stabilize the fretboard so he could tap out searing songs like "Eruption." While Van Halen was obviously interested in improving his guitar work, the patent application he filed in 1985 notes that the device would work with any stringed instrument. Want to tap out a scorching mandolin solo? Find someone selling Eddie's device. natifacetica.blogspot.com 3. JAMES CAMERON It’s probably not surprising that Cameron—who designed a submersible to take him to the deepest known part of the ocean—will often invent technology to make his films if what he needs doesn’t exist. He holds a number of patents, including US Patent No. 4996938, “apparatus for propelling a user in an underwater environment,” that he and his brother, Michael, created to film The Abyss and patented in 1989. The device is basically an underwater dolly equipped with propellers that makes it easy for a camera operator to maneuver in the water—and allowed Cameron to capture the shots he wanted for the 1989 film, part of which was filmed in an abandoned nuclear reactor. theatlantic.com 4. STEVE MCQUEEN McQueen's driving abilities extended far beyond his legendary racing scenes in The Great Escape and Bullitt. In fact, he was a pretty serious motorcycle and car racer who toyed with the idea of someday becoming a professional racer. He even competed in some big-name races, like the prestigious 12 Hours of Sebring. McQueen didn't just drive his cars, though; he also liked to tinker with them. In 1969, he filed a design patent for an improved bucket seat, and that's how he became the proud owner of patent number D219584. pinterest.com 5. GEORGE LUCAS If you’ve ever played with a Star Wars toy, chances are George Lucas owns a patent on it. This Boba Fett action figure, which Lucas holds a patent on with co-inventors Joe Johnston and Ralph McQuarrie, was the first of 11 the director would come to hold; it was filed in 1979 and granted in 1982. battlegrip.com 6. HEDY LAMARR hedylamarr.com Lamarr's name may not be so familiar now, but in the 1930s and 1940s, the Austrian-born MGM actress was one of the hottest things on the silver screen. She was quite the scientist, too. In 1942 Lamarr and composer George Antheil received a patent for a "secret communication system" that could use carrier waves of different frequencies to remotely control devices like zeppelins and torpedoes. Unfortunately, mechanical engineering wasn't quite ready for Lamarr's major breakthrough, and the technology didn't come into use for over 20 years, at which point Lamarr's patent had expired. rickmathieson.com 7. PRINCE Even the man in purple has a patent to call his own. In 1992 Prince got the thumbs-up for a design patent for a "portable keyboard instrument." Yup, it's a keytar. This one's a curvy purple design with two pitchfork-type spikes on the end. In other words, it's something that could only have come out of Prince's noggin. patentcrab.co 8. PENN JILLETTE In 1999 everyone's favorite funnyman illusionist received a patent for a "hydro-therapeutic stimulator." What exactly does that mean? According to the application, it's "a spa of a type including a tub for holding water and a user, in particular, a female user." The spa's jets are strategically located to make the experience a bit more, ah, enjoyable for female bathers. wired.com 9. PAULA ABDUL Most mic stands are flat-bottomed and meant to stay in one position on the stage, which requires a performer to be close to the microphone in order to be heard—or to drag the heavy mic stand along the stage. That just didn't work for Paula Abdul, who in 2009 patented her own mic stand, a "dynamic microphone support apparatus." Her device has a concave base filled with cement and a cover on the base that "is positioned over the base and covers the compartment such that weight of a user positioned on the base cover applied in a direction causes the base to tilt with respect to the surface in the direction; and a rod member." The resulting invention looks like a cross between a workout apparatus, a mic stand, and a death trap, but because the base is weighted, the singer can stand on top and move around without fear of falling over. theatlantic.com 10. MARLON BRANDO To say Brando got a bit eccentric in his golden years is something of an understatement, but the aging actor also started to get innovative. Brando's inventiveness focused on the drums, and in 2002 he received a patent for a "drumhead tensioning device and method," one of the several patents he held for drum devices. newsfeed.time.com Credits: mentalfloss Share this story on Facebook with your friends.