JP

John Phillip Porrill

PL Pandrol Limited: 9 patents #4 of 79Top 6%
BK Bwg Gmbh & Co. Kg: 3 patents #2 of 15Top 15%
VG Vae Eisenbahnsysteme Gmbh: 3 patents #5 of 23Top 25%
VG Vae Gmbh: 3 patents #8 of 45Top 20%
Overall (All Time): #553,449 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
11753774 Anchoring device for a railway rail fastening assembly John D. Spencer, Stephen John Cox, Brenton Keast, Steven Harkness, Chris Lea 2023-09-12
8763923 Railway rail fastening apparatus Stephen John Cox, Anthony Adedipe, Nicholas Lloyd 2014-07-01
8146835 Sealing plate for railway rail clip anchoring device and sleeper manufacturing method Stephen John Cox 2012-04-03
8033480 Arrangement for fastening railroad rails to a sleeper Hubertus Hohne, Hans-Ulrich Dietze, Heinz Ossberger, Josef Leitner, David Seeley 2011-10-11
7954727 Anchoring devices for rail fastening clips Stephen John Cox, Robert John Hamilton, Jozef Nevidal, Martin Somerset, Paul Hewlett +1 more 2011-06-07
7874527 Fastening rail in railway slide chair assembly David Seeley, Heinz Ossberger, Josef Leitner, Hans-Ulrich Dietze, Hubertus Hohne 2011-01-25
7648080 Rail fixing device Hubertus Hohne, Hans-Ulrich Dietze, Heinz Ossberger, Josef Leitner, David Seeley 2010-01-19
6761322 Railway baseplate assembly Stephen John Cox 2004-07-13
6651897 Suspended rail fastening assembly Stephen John Cox 2003-11-25