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PORVAIR PLC

Overview
  • Total Patents
    92
  • GoodIP Patent Rank
    113,211
  • Filing trend
    ⇩ 50.0%
About

PORVAIR PLC has a total of 92 patent applications. It decreased the IP activity by 50.0%. Its first patent ever was published in 1989. It filed its patents most often in WIPO (World Intellectual Property Organization), EPO (European Patent Office) and United States. Its main competitors in its focus markets materials and metallurgy, chemical engineering and machines are JIANGSU PROVINCE YIXING NONMETALLIC CHEM MACH FACTORY CO LTD, POROTON HOLDING SA and SMART SEPARATIONS LTD.

Patent filings per year

Chart showing PORVAIR PLCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Aubrey Leonard S 23
#2 Haack David P 15
#3 Olson Rudolph A 13
#4 Chi Feng 13
#5 Olson Rudolph A Iii 10
#6 Clegg Alan James 10
#7 Redden Myron K 7
#8 Moore Christopher Bernard 6
#9 Craig Donald B 6
#10 Stirling Ian 6

Latest patents

Publication Filing date Title
US2019113282A1 Permeable Bottom Crucible
WO2018112296A1 Yttrium oxide ceramic coated crucible
US2018153213A1 Vaporizer Metal Foam Filter
WO2016106179A1 Ceramic 3d-printed molten metal filter with improved spalling resistance
WO2015191426A1 Magnesium oxide filter made from burned magnesium oxide
US2017050885A1 Boron-Free Aluminum Castshop Ceramic Foam Filter
CN105392543A Bn or y2o3 coated ceramic foam filters used in filtration of aluminum-lithium alloys and other reactive alloys
US2014348693A1 Matrix Riser Breaker Insert
CN104736221A Higher strength mullite-based iron foundry filter
EP2470283A2 Corrosion resistant glass coating applied to ceramic foam used to filter molten metal
EP2304065A2 Improved method for filtering molten aluminum and molten aluminum alloys
WO2009042817A2 Novel filtration system for large cast iron castings
US2008245188A1 Compact micro-porous media degasser
CN101415477A Low expansion corrosion resistant ceramic foam filters for molten aluminum filtration
CA2619246A1 Improved ceramic foam filter for better filtration of molten iron
US2006266714A1 Ceramic foam filter for better filtration of molten iron
WO2005087690A2 Low mass kiln furniture
US7316721B1 Ceramic foam insulator with thermal expansion joint
US7328831B1 Method of making a brazed metal article and the article formed thereby
EP1656462A2 Compact micro-porous media device for degassing molten metal