Inventor · disambiguated record
Alfredo Yi-Yan
Also filed as: YI-YAN ALFREDO
4 granted patents·238 citations·filing 1987–1999
82Inventor score
Top patents by PatentIndex Score
4 records- 0183US5122852AGrafted-crystal-film integrated optics and optoelectronic devicesBELL COMMUNICATIONS RES·Filed 1990·Granted Jun 16, 1992·96 cites·22 claims
- 0281US4747654AOptical monomode guidance structure including low resolution gratingYI YAN ALFREDO·Filed 1987·Granted May 31, 1988·58 cites·11 claims
- 0379US6198855B1Velocity-matched, traveling-wave electro-optical devices using non-conductive and conductive polymer buffer layersJDS UNIPHASE CORP·Filed 1999·Granted Mar 6, 2001·63 cites·23 claims
- 0460US4919504AGraded-index waveguidesBELL COMMUNICATIONS RES·Filed 1989·Granted Apr 24, 1990·21 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →