Inventor · disambiguated record
Biddanda U. Achia
Also filed as: ACHIA BIDDANDA U · ACHIA BIDDANDA UMESH
12 granted patents·409 citations·filing 1978–2001
92Inventor score
Top patents by PatentIndex Score
12 records- 0197US5059299AMethod for isomerizing wax to lube base oilsEXXON RESEARCH ENGINEERING CO·Filed 1990·Granted Oct 22, 1991·246 cites·17 claims
- 0287US4592832AProcess for increasing Bright Stock raffinate oil productionEXXON RESEARCH ENGINEERING CO·Filed 1984·Granted Jun 3, 1986·52 cites·5 claims
- 0378US4937399AMethod for isomerizing wax to lube base oils using a sized isomerization catalystEXXON RESEARCH ENGINEERING CO·Filed 1988·Granted Jun 26, 1990·32 cites·14 claims
- 0459US6258255B1Method for enhancing asphalt propertiesEXXON RESEARCH ENGINEERING CO·Filed 1999·Granted Jul 10, 2001·14 cites·10 claims
- 0559US4673485AProcess for increasing deasphalted oil production from upgraded residuaEXXON RESEARCH ENGINEERING CO·Filed 1984·Granted Jun 16, 1987·15 cites·4 claims
- 0655US5306681AMethod for recovery or maintaining the activity of hydroisomerization catalystsEXXON RESEARCH ENGINEERING CO·Filed 1993·Granted Apr 26, 1994·13 cites·8 claims
- 0749US4522710AMethod for increasing deasphalted oil productionEXXON RESEARCH ENGINEERING CO·Filed 1983·Granted Jun 11, 1985·9 cites·15 claims
- 0848US6534318B2Mass spectrometric multivariate analysisEXXONMOBIL RES & ENG CO·Filed 2001·Granted Mar 18, 2003·5 cites·13 claims
- 0947US4594142ADewaxing waxy hydrocarbon oils using di-alkyl fumarate-vinyl laurate copolymer dewaxing aidsEXXON RESEARCH ENGINEERING CO·Filed 1985·Granted Jun 10, 1986·11 cites·4 claims
- 1039US5212128AMethod for recovering or maintaining the activity of hydroisomerization catalystsEXXON RESEARCH ENGINEERING CO·Filed 1991·Granted May 18, 1993·5 cites·3 claims
- 1137US4377467ASolvent dewaxing waxy hydrocarbon oils using dewaxing aidEXXON RESEARCH ENGINEERING CO·Filed 1981·Granted Mar 22, 1983·4 cites·12 claims
- 1235US4203824APolyvinylpyrrolidone dewaxing aid for bright stocksEXXON RESEARCH ENGINEERING CO·Filed 1978·Granted May 20, 1980·3 cites·11 claims
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