Kenjiro Sano, who unveiled his logo design for the Tokyo 2020 Olympics last month, has denied allegations that he copied the design from an emblem for a Belgian theatre. More about Tokyo 2020 Olympics logo designer refutes plagiarism accusations
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 about Adidas sues Marc Jacobs for "tarnishing" three-stripe motif
American furniture brand Emeco is to sue IKEA for damages for allegedly copying a chair designed by Norman Foster. More about IKEA faces legal action over alleged copyright infringement
China's days as a major producer of fake designer goods are numbered, according to Design Shanghai's creative director Ross Urwin. More about "China's copying days are coming to an end" says Design Shanghai creative director
Design Indaba 2015: the Bombo stool is "the most copied design product in the world," according to its designer Stefano Giovannoni. More about Bombo stool by Stefano Giovannoni is world's "most copied" design product
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 about UK government sets 2020 deadline to end replica furniture production
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 about "To tar all replica furniture companies with the same brush is neither fair nor accurate"
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 about "Copyists are eating away at the creativity of our industry"
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 about Design brands attack UK government over copyright law delay
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 about Royal College of Art graduate "technically" guilty of plagiarism
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 about Atopia "not going to answer" questions over Olympic images
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 about Dispute over 2012 Olympic cauldron design settled out of court
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 about Royal College of Art investigates plagiarism claim
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 about Maaike Roozenburg combines augmented reality and digital prototyping to create smart fakes
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 about "Don't be afraid to learn by copying others"
News: a designer who developed a technique for harnessing bees to create physical objects has accused a major brand of exploiting his work. More about Honeycomb vase designer says whisky campaign "unabashedly exploits" his work
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 about Beijing Design Week confronts copying in China with giant rubber duck
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 about "We never claimed to be designers of the cauldron" says Atopia
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 about Dezeen archive: copying in design
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 about Thomas Heatherwick rejects claims that Olympic cauldron is a copy as "spurious nonsense"