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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Dear Julien<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Thanks you for this heads up. Very interesting.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">First, having a patent doesn’t mean much – it is a license to sue and prevent competition or collect royalties. In short, a patent can exist and not be valid. To validate it, in most jurisdictions,
means having a USA court agree, which costs US$180,000. They will check for “prior art”<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Demonstrating “prior art” is relatively easy if it exists. A patent is only valid if it is issued to the original inventor and includes a “novel step”. If the claimed novel steps (or combinations)
are copied from the public domain it is not valid. Sometimes the 20<sup>th</sup> or 25<sup>th</sup> claim on the patent is valid but is so narrow that it only applies to an extremely small sub-set of virtually identical products, and the patent holder has
to prove that you are making that particular implementation.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">If a producer in China was sued based on a Chinese patent, it might be upheld because the defendant could not find prior art in the public domain. Threat of a suit can be used to intimidate small
producers. It is best resisted by sending them info on prior art.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">You can place something in the public domain by making and selling one (1) to a member of the public. Prove that, and prior art is proven. It is by
<i>far</i> not the only way. But it is effective. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Crispin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Garamond",serif;color:black">Crispin Pemberton-Pigott<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Garamond",serif;color:black">Email:
<a href="mailto:crispinpigott@outlook.com"><span style="color:black;text-decoration:none">crispinpigott@outlook.com</span></a><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Garamond",serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">Subject:</span></b><span lang="EN-US"> [Stoves] Worldwide Chinese TLUD Patents<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi All;<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">For our general information, attached is a list of Chinese patents taken out on TLUD stoves. These patents were taken out Worldwide.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">CN101430102A 2008 <a href="https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatents.google.com%2Fpatent%2FCN101430102A%2Fen&data=04%7C01%7C%7C19dc76210f19443a0d8f08d89c622300%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637431292586458747%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=vlbKBuOtzepoM6TThp9EPdM8UGG3yrw8NHoUmivhMsE%3D&reserved=0">CN101430102A
- Biomass shaping fuel-combustion countryside cooking/bathing/heating integrated apparatus - Google Patents</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">CN201014515Y 2006 <a href="https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatents.google.com%2Fpatent%2FCN201014515Y%2Fen%3Foq%3DCN201014515Y&data=04%7C01%7C%7C19dc76210f19443a0d8f08d89c622300%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637431292586458747%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=MbkadVg1znzKNzAdXNOhzxfR0xxqRSl5MqLk8GYnhbQ%3D&reserved=0">CN201014515Y
- Hollow ring container multi-order air feed high class biomass cooking furnace - Google Patents</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">CN101430102B 2008 <a href="https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatents.google.com%2Fpatent%2FCN101430102B%2Fen%3Foq%3DCN101430102B&data=04%7C01%7C%7C19dc76210f19443a0d8f08d89c622300%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637431292586468742%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=WrYPcBjTNfJt4ukv99bY5jEfzpD%2FhMt3n1KpGY8QEUw%3D&reserved=0">CN101430102B
- Biomass shaping fuel-combustion countryside cooking/bathing/heating integrated apparatus - Google Patents</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">CN104006413A 2014 <a href="https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatents.google.com%2Fpatent%2FCN104006413A%2Fen%3Foq%3DCN104006413A&data=04%7C01%7C%7C19dc76210f19443a0d8f08d89c622300%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637431292586468742%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=SiJH1mVGstzPvNe%2FyfBu0tbf0rYUaqv4aWG4IFHHG%2Bg%3D&reserved=0">CN104006413A
- Biomass cooking stove based on TLUD gasification principle and thermoelectric power generation technology - Google Patents</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">CN203549916U 2013 <a href="https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatents.google.com%2Fpatent%2FCN203549916U%2Fen%3Foq%3DCN203549916U&data=04%7C01%7C%7C19dc76210f19443a0d8f08d89c622300%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637431292586468742%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=EdK%2FnihkoIzKjhKX5fqq1X4KFZLxzWcKZznOpxHoIgM%3D&reserved=0">CN203549916U
- Strengthened-discharging-type cooking stove - Google Patents</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">To get the illustrations for these patents, you have to download the respective pdf files that are in Chinese.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Just out of curiosity, how did the TLUD technology develop in China? Did Tom Reed, Paul Anderson, Crispin Pemberton-Piggot or Aprovecho lend a hand.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">These patents are an example of why we should patent our stoves, even when developed as open access technology. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Are YouTube videos an economical and effective way of establishing the Worldwide precedence of an open access technology?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Cheers,<o:p></o:p></p>
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<p class="MsoNormal">Julien<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">Julien Winter<br>
Cobourg, ON, CANADA<o:p></o:p></p>
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