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Misleading Register Alert event notification on 15.04.19

Following a clean-up exercise of event information regarding (previously) revoked patents, that were later reinstated, some existing revocation events ("Despatch of communication that patent is revoked") were duplicated on 15.04.2019.


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Extract from the Register of European Patents

Citations: EP0609927

Cited inSearch
Type:Patent literature
Publication No.:EP0522625  [A]
 (NEDERLAND PTT [NL]) [A] 1 * column 3, line 48 - column 5, line 51; figures 1-4B *;
Type:Non-patent literature
Publication information:[DA]  J.J.G.M. VAN DER TOL ET AL., "A polarization splitter on LiNbO3 using only titanium diffusion", JOURNAL OF LIGHTWAVE TECHNOLOGY., NEW YORK US, (199107), vol. 9, no. 7, doi:doi:10.1109/50.85789, pages 879 - 886, XP000241871 [DA] 1 * the whole document *
Type:Non-patent literature
Publication information:[A]  J.J.G.M. VAN DER TOL ET AL., "Measurement of mode splitting in asymmetric y-junctions", IEEE PHOTONICS TECHNOLOGY LETTERS, NEW YORK US, (199205), vol. 4, no. 5, doi:doi:10.1109/68.136484, pages 454 - 457, XP000272642 [A] 1 * the whole document *
Type:Non-patent literature
Publication information:[A]  K. MATSUBARA ET AL., "Y-branch TE-TM mode splitter using multilayered waveguide", JAPANESE JOURNAL OF APPLIED PHYSICS., TOKYO JP, (199205), vol. 31, no. 5B, doi:doi:10.1143/JJAP.31.1636, pages 1636 - 1640, XP000323130 [A] 1 * the whole document *