Inventor · disambiguated record
Robert Sprague
Also filed as: SPRAGUE ROBERT · SPRAGUE ROBERT S
15 granted patents·2 pending applications·124 citations·filing 1983–2025
92Inventor score
Top patents by PatentIndex Score
17 records- 0196US9989684B2Near infrared optical interference filters with improved transmissionMATERION CORP·Filed 2016·Granted Jun 5, 2018·10 cites·16 claims
- 0292US11372144B2Near infrared optical interference filters with improved transmissionMATERION CORP·Filed 2019·Granted Jun 28, 2022·3 cites·26 claims
- 0390US9804310B2Method of fabricating anisotropic optical interference filterMATERION CORP·Filed 2016·Granted Oct 31, 2017·2 cites·27 claims
- 0489US10437042B2Enhancement of output of optically pumped phosphor by use of surface nanostructuresMATERION CORP·Filed 2017·Granted Oct 8, 2019·4 cites·19 claims
- 0588US2025389880A1Near infrared optical interference filters with improved transmissionMATERION CORP·Filed 2025·Application pending·0 cites
- 0683US12000033B2Method of fabricating anisotropic optical interference filterMATERION CORP·Filed 2022·Granted Jun 4, 2024·0 cites·9 claims
- 0783US9927369B2Automated defect detection and mapping for optical filtersMATERION CORP·Filed 2016·Granted Mar 27, 2018·2 cites·19 claims
- 0881US11365471B2Method of fabricating anisotropic optical interference filterMATERION CORP·Filed 2019·Granted Jun 21, 2022·0 cites·19 claims
- 0980US4650423AMethod of teaching and transcribing of language through the use of a periodic code of language elementsSPRAGUE ROBERT·Filed 1984·Granted Mar 17, 1987·37 cites·14 claims
- 1076US10502880B2Method of fabricating anisotropic optical interference filterMATERION CORP·Filed 2017·Granted Dec 10, 2019·1 cites·27 claims
- 1174US12422605B2Near infrared optical interference filters with improved transmissionMATERION CORP·Filed 2022·Granted Sep 23, 2025·0 cites·23 claims
- 1273US10871644B2Enhancement of output of optically pumped phosphor by use of surface nanostructuresMATERION CORP·Filed 2019·Granted Dec 22, 2020·1 cites·16 claims
- 1365US2016238759A1Near infrared optical interference filters with improved transmissionMATERION CORP·Filed 2016·Application pending·0 cites
- 1464US4768959AMethod of teaching and transcribing of language through the use of a periodic code of language elementsSPRAGUE ROBERT·Filed 1986·Granted Sep 6, 1988·27 cites·7 claims
- 1564US4515566AFlip card apparatus for forming units of speechSPRAGUE ROBERT S·Filed 1983·Granted May 7, 1985·22 cites·28 claims
- 1663US11474422B2Reflective color correction for phosphor illumination systemsMATERION CORP·Filed 2019·Granted Oct 18, 2022·0 cites·23 claims
- 1749US4795349ACoded font keyboard apparatusSPRAGUE ROBERT·Filed 1987·Granted Jan 3, 1989·15 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →