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Background£ºIn January last year, a lawyer of *** patent agency entrusted me with the collection of evidence of a transnational patent invalidation case.

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Details of the case: The person making the request was intent to make the request for the invalidation of two patents for design (worm slewing bearing transmission), however, the lawyer failed in finding the prior design. The clues provided by the person making the request pointed toward a Germany corporation selling this kind of products but not identified its name. The lawyer hoped that I could find out related commercial advertisements or product manuals and it would be best that I could trace the specific name of the Germany corporation as well as its sales clues in China. The lawyer also provided two pictures and photos of China¡¯s  design to serve as the evidence of prior design.

ÏßË÷ʵÔÚºÜÉÙ¡£ÎÒÏÈͨ¹ýÍøÂçµ÷²é¡°Îϸ˻Ø×ªÖ§³ÐµÄ±äËÙÆ÷¡±(ÂÉʦÌṩµÄÃû³Æ)ºÍ¡°»Ø×ªÊ½¼õËÙÆ÷¡±(Íâ¹ÛרÀûÖеÄÃû³Æ)µÄÏà¹Ø²úÆ·ÒÔ¼°ËüµÄÓ¢ÎÄÃû³Æ¡£ÕÒµ½ÁËÀàËÆµÄ²úÆ·£º»ØÐýÖ§³Ð
Æä¶ÔÓ¦Ó¢ÎÄÃû³ÆÎª£ºslewing bearing »ò turntable bearing£¬µ«ÎÒʹÓô˹ؼü´Ê²é±éÁËÅ·ÃÀµÄרÀû£¬µ«Î´ÕÒµ½ÏàËÆÕß¡£
The clues were very few. I first traced on the Internet the related products and their English titles of the ¡°worm slewing bearing transmission (given by the lawyer)¡± and the ¡°rotary redactor (shown in the patent of design). Analogous product was found: »ØÐýÖ§³Ð. The corresponding English term was: slewing bearing or turntable bearing. However, by using such a key word, I searched all the American Patent Website and European Patent Website but found no similar product.

ÎÒÓÖͨ¹ýslewing bearing¼ìË÷µ½ËüµÄµÂÓïÃû³ÆÎªSchwenktriebe£¬ÖÕÓڲ鵽µÂ¹úIMO¹«Ë¾Éú²úÍâÐÎÏàͬµÄ²úÆ·£¬ÈçÏÂÁ½Í¼£º
I further retrieved the German counterpart of ¡°slewing bearing¡± as ¡°Schwenktriebe¡± and at last traced the product with similar design manufactured by IMO corporation in Germany shown in the two pictures given below:


[ Last edited by phyweiw on 2010-1-24 at 16:42 ]
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