Inventor · disambiguated record
Yumi P. Ryu
Also filed as: RYU YUMI P
5 granted patents·94 citations·filing 1980–1981
82Inventor score
Files withGULF RESEARCH DEVELOPMENT CO5
Top patents by PatentIndex Score
5 records- 0182US4383931ALubricating oils containing molybdenyl chelatesGULF RESEARCH DEVELOPMENT CO·Filed 1981·Granted May 17, 1983·31 cites·6 claims
- 0280US4370245AGrease compositions containing quaternary ammonium thiomolybdatesGULF RESEARCH DEVELOPMENT CO·Filed 1980·Granted Jan 25, 1983·25 cites·16 claims
- 0371US4343746AQuaternary ammonium thiomolybdatesGULF RESEARCH DEVELOPMENT CO·Filed 1980·Granted Aug 10, 1982·20 cites·11 claims
- 0451US4343747APreparation of quaternary ammonium thiomolybdatesGULF RESEARCH DEVELOPMENT CO·Filed 1980·Granted Aug 10, 1982·10 cites·10 claims
- 0546US4400282ALubricating oils containing quaternary ammonium thiomolybdatesGULF RESEARCH DEVELOPMENT CO·Filed 1980·Granted Aug 23, 1983·8 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →