Inventor · disambiguated record
Christopher Chapman Rich
Also filed as: RICH CHRISTOPHER · RICH CHRISTOPHER C · RICH CHRISTOPHER CHAPMAN
34 granted patents·4 pending applications·771 citations·filing 1989–2024
97Inventor score
Top patents by PatentIndex Score
38 records- 0197US11861966B2Optical switch devicesWAVEFRONT TECH INC·Filed 2021·Granted Jan 2, 2024·7 cites·27 claims
- 0297US11618275B2Optical switch devicesWAVEFRONT TECH INC·Filed 2020·Granted Apr 4, 2023·8 cites·20 claims
- 0396US11221448B2Animated optical security featureWAVEFRONT TECH INC·Filed 2020·Granted Jan 11, 2022·11 cites·31 claims
- 0496US11198316B2Optical structures providing dichroic effectsWAVEFRONT TECH INC·Filed 2020·Granted Dec 14, 2021·4 cites·22 claims
- 0596US10850550B2Optical switch devicesWAVEFRONT TECH INC·Filed 2017·Granted Dec 1, 2020·13 cites·35 claims
- 0696US10252563B2Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical productsWAVEFRONT TECH INC·Filed 2016·Granted Apr 9, 2019·21 cites·58 claims
- 0796US8194315B2Polarization preserving projection screen with engineered particle and method for making sameSHARP GARY D·Filed 2010·Granted Jun 5, 2012·25 cites·9 claims
- 0896US5293272AHigh finesse holographic fabry-perot etalon and method of fabricatingPHYSICAL OPTICS CORP·Filed 1992·Granted Mar 8, 1994·338 cites·22 claims
- 0995US12078821B2Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical productsWAVEFRONT TECH INC·Filed 2020·Granted Sep 3, 2024·4 cites·15 claims
- 1095US11675203B2Optical structures providing dichroic effectsWAVEFRONT TECH INC·Filed 2020·Granted Jun 13, 2023·3 cites·25 claims
- 1195US11590790B2Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical productsWAVEFRONT TECH INC·Filed 2019·Granted Feb 28, 2023·9 cites·26 claims
- 1295US11113919B2Optical switch devicesWAVEFRONT TECH INC·Filed 2018·Granted Sep 7, 2021·10 cites·48 claims
- 1395US7430358B2Elliptical diffusers used in displaysWAVEFRONT TECHNOLOGY INC·Filed 2006·Granted Sep 30, 2008·109 cites·37 claims
- 1494US11840112B2Optical structures providing dichroic effectsWAVEFRONT TECH INC·Filed 2021·Granted Dec 12, 2023·2 cites·27 claims
- 1594US10859851B2Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical productsWAVEFRONT TECH INC·Filed 2015·Granted Dec 8, 2020·12 cites·38 claims
- 1693US12223794B2Optical switch devicesWAVEFRONT TECH INC·Filed 2023·Granted Feb 11, 2025·1 cites·20 claims
- 1793US10838218B2Optical structures providing dichroic effectsWAVEFRONT TECH INC·Filed 2018·Granted Nov 17, 2020·5 cites·24 claims
- 1892US12397576B2Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical productsWAVEFRONT TECH INC·Filed 2023·Granted Aug 26, 2025·1 cites·19 claims
- 1992US5026131AHigh channel density, broad bandwidth wavelength division multiplexer with highly non-uniform Bragg-Littrow holographic gratingPHYSICAL OPTICS CORP·Filed 1989·Granted Jun 25, 1991·81 cites·4 claims
- 2091US12269288B2Optical switch devicesWAVEFRONT TECH INC·Filed 2023·Granted Apr 8, 2025·1 cites·17 claims
- 2191US10655803B2Linear light emitting diode luminairesABL IP HOLDING LLC·Filed 2019·Granted May 19, 2020·5 cites·16 claims
- 2288US9110363B2Polarization preserving projection screen with engineered pigment and method for making sameREALD INC·Filed 2013·Granted Aug 18, 2015·6 cites·20 claims
- 2388US8488240B2Polarization preserving projection screen with engineered pigment and method for making samePETERSEN JOEL·Filed 2012·Granted Jul 16, 2013·8 cites·44 claims
- 2487US12360391B2Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical productsWAVEFRONT TECH INC·Filed 2021·Granted Jul 15, 2025·1 cites·20 claims
- 2585US12253691B2Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical productsWAVEFRONT TECH INC·Filed 2021·Granted Mar 18, 2025·1 cites·15 claims
- 2685US8169699B2Polarization preserving projection screen with engineered pigment and method for making samePETERSEN JOEL·Filed 2010·Granted May 1, 2012·11 cites·44 claims
- 2781US11162652B2Linear light emitting diode luminairesABL IP HOLDING LLC·Filed 2021·Granted Nov 2, 2021·1 cites·19 claims
- 2881US7298533B2Optical films for creating unique optical effectsWAVEFRONT TECHNOLOGY·Filed 2004·Granted Nov 20, 2007·25 cites·42 claims
- 2980US10883678B2Linear light emitting diode luminairesABL IP HOLDING LLC·Filed 2020·Granted Jan 5, 2021·1 cites·14 claims
- 3080US2025208434A1Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical productsWAVEFRONT TECH INC·Filed 2024·Application pending·0 cites
- 3179US2024343057A1Optical structures providing dichroic effectsWAVEFRONT TECH INC·Filed 2023·Application pending·0 cites
- 3275US5276537ADiamondlike carbon thin film protected hologram and method of making samePHYSICAL OPTICS CORP·Filed 1992·Granted Jan 4, 1994·36 cites·14 claims
- 3357US7343693B2Scale assembly for optical encoder having affixed optical reference markersGSI GROUP CORP·Filed 2006·Granted Mar 18, 2008·2 cites·15 claims
- 3455US9851070B2Systems and methods to impart visual quality to illumination systemsWAVEFRONT TECH INC·Filed 2014·Granted Dec 26, 2017·0 cites·22 claims
- 3552US10795059B2Ultra thin Fresnel lenses and other optical elementsWAVEFRONT TECH INC·Filed 2017·Granted Oct 6, 2020·0 cites·24 claims
- 3649US2022221735A1Optical switch devicesWAVEFRONT TECH INC·Filed 2021·Application pending·0 cites
- 3747US5083219AMethod and apparatus for recording lippman holographic mirrorsPHYSICAL OPTICS CORP·Filed 1989·Granted Jan 21, 1992·9 cites·25 claims
- 3841US2007099478A1Polymer sheet having surface relief featuresPETERSEN JOEL M·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →