Inventor · disambiguated record
Per Granestrand
Also filed as: GRANESTRAND PER · GRANESTRAND PER O · GRANESTRAND PER-OLOV
18 granted patents·188 citations·filing 1986–2023
93Inventor score
Top patents by PatentIndex Score
18 records- 0183US8041164B2Transition device for optical waveguidesSYNTUNE AB·Filed 2008·Granted Oct 18, 2011·16 cites·10 claims
- 0282US12348003B2Tunable semiconductor laser deviceII VI DELAWARE INC·Filed 2023·Granted Jul 1, 2025·0 cites·19 claims
- 0371US11670907B2Tunable semiconductor laser deviceII VI DELAWARE INC·Filed 2020·Granted Jun 6, 2023·0 cites·20 claims
- 0470US4887309AOptical repeater for fault tracing in an optical transmission systemERICSSON TELEFON AB L M·Filed 1988·Granted Dec 12, 1989·43 cites·7 claims
- 0564US9885828B2Optical waveguiding partFINISAR SWEDEN AB·Filed 2015·Granted Feb 6, 2018·1 cites·19 claims
- 0662US4917449AMethod of disposing a polarization directing optoelectronic coupler and a coupler for carrying out the methodERICSSON TELEFON AB L M·Filed 1988·Granted Apr 17, 1990·23 cites·19 claims
- 0758US6826203B1High yield DFB laser with effective reject selectionERICSSON TELEFON AB L M·Filed 2000·Granted Nov 30, 2004·5 cites·2 claims
- 0858US5303315ANear Z digital switchERICSSON TELEFON AB L M·Filed 1992·Granted Apr 12, 1994·22 cites·52 claims
- 0957US5202941AFour section optical couplerERICSSON TELEFON AB L M·Filed 1991·Granted Apr 13, 1993·22 cites·20 claims
- 1053US6922431B1Communication using spread spectrum methods over optical fibersERICSSON TELEFON AB L M·Filed 1998·Granted Jul 26, 2005·21 cites·18 claims
- 1146US4756588APolarization-independent optoelectronic directional couplerERICSSON TELEFON AB L M·Filed 1986·Granted Jul 12, 1988·12 cites·6 claims
- 1243US6181860B1Optical waveguide designed to facilitate connections with optical componentry and fibersERICSSON TELEFON AB L M·Filed 1998·Granted Jan 30, 2001·15 cites·13 claims
- 1340US8306370B2Mach zehnder modulatorGRANESTRAND PER·Filed 2008·Granted Nov 6, 2012·0 cites·5 claims
- 1440US6914924B2Optical device and fabrication thereofERICSSON TELEFON AB L M·Filed 2001·Granted Jul 5, 2005·2 cites·17 claims
- 1536US9921370B2Waveguide for extraction of light at low levels of reflectionWESSTROM JAN OLOF·Filed 2009·Granted Mar 20, 2018·0 cites·22 claims
- 1636US7065119B2Distributed feedback laser with varying electrical resistance for uniform gain inside the optical waveguideERICSSON TELEFON AB L M·Filed 2001·Granted Jun 20, 2006·0 cites·21 claims
- 1735US11081863B2Optical device and method for controlling such a deviceFINISAR SWEDEN AB·Filed 2018·Granted Aug 3, 2021·0 cites·26 claims
- 1835US6014250ALaser amplifier, an optical system comprising such a laser amplifier and a method of forming such a laser amplifierERICSSON TELEFON AB L M·Filed 1996·Granted Jan 11, 2000·6 cites·26 claims
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