Inventor · disambiguated record
Johannes Jacobus Gerardus Maria Van Der Tol
Also filed as: VAN DER TOL JOHANNES J G M · VAN DER TOL JOHANNES JACOBUS G · VAN DER TOL JOHANNES JACOBUS GERARDUS · VAN DER TOL JOHANNES JACOBUS GERARDUS MARIA
22 granted patents·1 pending application·413 citations·filing 1992–2025
96Inventor score
Top patents by PatentIndex Score
23 records- 0175US5900957AOptical packet-switched transmission networkNEDERLAND PTT·Filed 1997·Granted May 4, 1999·45 cites·20 claims
- 0271US5185828AOptical waveguide (te,tm) mode converterNEDERLAND PTT·Filed 1992·Granted Feb 9, 1993·36 cites·27 claims
- 0370US5896474AOptical network having protection configurationKONINKL KPN NV·Filed 1997·Granted Apr 20, 1999·36 cites·11 claims
- 0469US2025341730A1Passive light wave conversion moduleSMART PHOTONICS HOLDING B V·Filed 2025·Application pending·0 cites
- 0565US5524156APolarization and wavelength independent optical power splitting circuitNEDERLAND PTT·Filed 1995·Granted Jun 4, 1996·30 cites·20 claims
- 0664US9075197B2Increased tolerance polarization convertersUNIV EINDHOVEN TECH·Filed 2012·Granted Jul 7, 2015·1 cites·6 claims
- 0763US5285507AControllable polarisation transformerNEDERLAND PTT·Filed 1993·Granted Feb 8, 1994·28 cites·9 claims
- 0862US5708734APolarisation-independent optical deviceNEDERLAND PTT·Filed 1996·Granted Jan 13, 1998·30 cites·18 claims
- 0962US5696856AIntegrated optical polarisation splitterNEDERLAND PTT·Filed 1996·Granted Dec 9, 1997·25 cites·14 claims
- 1059US5574808AOptical switching deviceNEDERLAND PTT·Filed 1993·Granted Nov 12, 1996·23 cites·19 claims
- 1159US5375178AIntegrated optical polarization manipulating deviceNEDERLAND PTT·Filed 1994·Granted Dec 20, 1994·22 cites·4 claims
- 1255US5680236AIntegrated optical wavelength demultiplexerNEDERLAND PTT·Filed 1995·Granted Oct 21, 1997·19 cites·3 claims
- 1355US5539845AIntegrated optical polarization converter with enhanced periodic coupling and method of fabricating sameNEDERLAND PTT·Filed 1995·Granted Jul 23, 1996·20 cites·13 claims
- 1452US5878181AOptical non-linear branching elementNEDERLAND PTT·Filed 1997·Granted Mar 2, 1999·19 cites·14 claims
- 1547US5325221AWavelength division multiplexer and demultiplexerNEDERLAND PTT·Filed 1992·Granted Jun 28, 1994·13 cites·8 claims
- 1644US5887092AOptical non-linear branching element with MZ interferometerKONINKL KPN NV·Filed 1997·Granted Mar 23, 1999·11 cites·7 claims
- 1743US5491763AOptical hybrid with 3×3 coupling deviceNEDERLAND PTT·Filed 1993·Granted Feb 13, 1996·10 cites·13 claims
- 1840US5528708AMethod and appertaining pair of mask patterns for fabricating, with the application of double masking, integrated optical waveguide structuresNEDERLAND PTT·Filed 1995·Granted Jun 18, 1996·9 cites·20 claims
- 1938US5761353AOptical coupling device and optical switch for use in the coupling deviceNEDERLAND PTT·Filed 1996·Granted Jun 2, 1998·8 cites·18 claims
- 2033US6714741B1Method and apparatus for monitoring an optical WDM networkKONINKL KPN NV·Filed 1999·Granted Mar 30, 2004·9 cites·19 claims
- 2133US5922216AMethod for manufacturing sharp waveguide branches in integrated optical circuitsNEDERLAND PTT·Filed 1996·Granted Jul 13, 1999·8 cites·10 claims
- 2232US5364495AMethod of manufacturing sharp waveguide branches in integrated optical componentsNEDERLAND PTT·Filed 1993·Granted Nov 15, 1994·9 cites·13 claims
- 2330US5257330APolarization filter with intermediate optical waveguide which is monomodal for one polarization and bimodal for the otherNEDERLAND PTT·Filed 1992·Granted Oct 26, 1993·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →