Sports brand Adidas has accused fashion designer Marc Jacobs of producing "confusingly similar imitations" of its iconic three-stripe motif with sweatshirts bearing four stripes down each sleeve. More
American furniture brand Emeco is to sue IKEA for damages for allegedly copying a chair designed by Norman Foster. More
China's days as a major producer of fake designer goods are numbered, according to Design Shanghai's creative director Ross Urwin. More
Design Indaba 2015: the Bombo stool is "the most copied design product in the world," according to its designer Stefano Giovannoni. More
Business news: the UK government has finally set a date for the introduction of its new copyright protection law, making it illegal to manufacture or sell copies of mass-produced designs after 2020. More
Opinion: earlier this month Vitra's Tony Ash argued that copyists are "eating away at the very creativity of our industry". In response, Chris Diemer of replica furniture company Voga argues that firms like his are making good design affordable for the masses. More
Opinion: the UK is one of only three European countries failing to protect designers from intellectual property theft – damaging both their income and the reputation of their products, says Tony Ash, managing director for design brand Vitra. More
News: design brands including Vitra, Artek and Flos have joined forces to attack the UK government for delaying the implementation of a law that would outlaw the sale of copies of their furniture and lighting products. More
News: a former Royal College of Art student has been found "technically" guilty of plagiarism and misconduct after a company complained that his graduate design project was similar to its own services. More
News: the design firm that claimed Thomas Heatherwick's Olympic cauldron bore "a striking resemblance" to its own work and this week received a financial settlement may never have shown images of its concept to London's Olympic organisers, it has emerged. More
News: London 2012 Olympics organisers have agreed an out-of-court settlement with American firm Atopia following a legal dispute over the iconic 2012 cauldron design by Thomas Heatherwick. More
News: the Royal College of Art is investigating claims that one of its graduates plagiarised an existing design after a Finnish company complained that its reusable packaging concept had been copied. More
Dutch designer Maaike Roozenburg uses 3D printing to create replicas of antique objects enhanced with a layer of augmented reality information in her SmartReplicas project, reports Gabrielle Kennedy (+ slideshow). More
Opinion: Slovakian designer Tomáš Libertíny, who wrote to Dezeen last month accusing a major advertising agency of exploiting his work, reflects on the nature of copying in design and argues that imitating the work of others should be an integral part of any designer's education. More
News: a designer who developed a technique for harnessing bees to create physical objects has accused a major brand of exploiting his work. More
News: the organisers of Beijing Design Week plan to emphasise problems with copyright in China by exhibiting an original version of Dutch artist Florentijn Hofman's giant Rubber Duck, which was duplicated around the country when it recently appeared in Hong Kong's Victoria Harbour. More
News: New York design studio Atopia has moved to defuse the row over the authorship of the 2012 Olympic cauldron, saying: "we have never accused Thomas Heatherwick of plagiarism". More
Dezeen archive: following claims that Thomas Heatherwick's Olympic cauldron design isn't original, we've compiled our top stories about copying in design. More
News: Thomas Heatherwick has denied any knowledge of a design presented to the London Olympic committee in 2007 by an American firm, which bears a strong resemblance to his cauldron used at the climax of last summer's Olympic opening ceremony. More
News: the fictional bridges depicted on Euro banknotes have been been transformed into reality at a new housing development near Rotterdam. More