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Koken Ltd
Koken Ltd_20131212

Koken Ltd patents

Recent patent applications related to Koken Ltd. Koken Ltd is listed as an Agent/Assignee. Note: Koken Ltd may have other listings under different names/spellings. We're not affiliated with Koken Ltd, we're just tracking patents.

ARCHIVE: New 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "K" | Koken Ltd-related inventors

Date Koken Ltd patents (updated weekly) - BOOKMARK this page
01/07/16Voice transmitter
10/29/15Local air cleaner
10/22/15Air blower and protective suit including the same
08/06/15Protective garment
05/14/15Purified air discharge device
04/23/15Respiratory protection device
03/05/15Local air cleaning apparatus
02/05/15Respiratory protection device
12/18/14Local air cleaning apparatus
12/12/13Air cleaning predicting breakthrough time for the same
04/18/13Air blowing device
02/28/13Supply valve for air respirator
12/20/12Local clean zone forming apparatus
06/30/11Sheet of microfiber assembly, and making the same
05/20/10Antimicrobial composition, process for preparing the same, and utilization thereof
04/08/10Mask device with blower
06/18/09Toxic gas exposure preventing system for anatomic practice room
12/12/13Air cleaning predicting breakthrough time for the same

ARCHIVE: New 2016 2015 2014 2013 2012 2011 2010 2009


This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. is not affiliated or associated with Koken Ltd in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Koken Ltd with additional patents listed. Browse our Agent directory for other possible listings. Page by