JP

John Phillip Porrill

PL Pandrol Limited: 3 patents #1 of 12Top 9%
BK Bwg Gmbh & Co. Kg: 2 patents #1 of 6Top 20%
VG Vae Eisenbahnsysteme Gmbh: 2 patents #1 of 6Top 20%
VG Vae Gmbh: 2 patents #1 of 6Top 20%
Overall (2011): #44,993 of 364,097Top 15%
3
Patents 2011

Issued Patents 2011

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
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