Inventor · disambiguated record
David A. Barclay
Also filed as: BARCLAY DAVID · BARCLAY DAVID A · BARCLAY DAVID ALLAN
23 granted patents·3 pending applications·495 citations·filing 1984–2021
96Inventor score
Top patents by PatentIndex Score
26 records- 0192US10527530B2Pressure stepped microwave assisted digestionCEM CORP·Filed 2018·Granted Jan 7, 2020·3 cites·6 claims
- 0291US9943823B2Pressure stepped microwave assisted digestionCEM CORP·Filed 2015·Granted Apr 17, 2018·3 cites·13 claims
- 0391US5796080AMicrowave apparatus for controlling power levels in individual multiple cellsCEM CORP·Filed 1995·Granted Aug 18, 1998·134 cites·13 claims
- 0490US6288379B1Use of continuously variable power in microwave assisted chemistryCEM CORP·Filed 1999·Granted Sep 11, 2001·85 cites·27 claims
- 0588US10067043B2Pressure stepped microwave assisted digestionCEM CORP·Filed 2016·Granted Sep 4, 2018·2 cites·10 claims
- 0686US9237608B2Pressure stepped microwave assisted digestionBARCLAY DAVID A·Filed 2009·Granted Jan 12, 2016·7 cites·19 claims
- 0786US6084226AUse of continuously variable power in microwave assisted chemistryCEM CORP·Filed 1998·Granted Jul 4, 2000·65 cites·5 claims
- 0882US5215715AMicrowave heated digesting system for digesting materials to be analyzedCEM CORP·Filed 1991·Granted Jun 1, 1993·63 cites·17 claims
- 0975US6207462B1Microwave apparatus and method for analysis of asphalt-aggregate compositionsCEM CORP·Filed 1998·Granted Mar 27, 2001·29 cites·42 claims
- 1075US5972711AMicrowave assisted chemical processesCEM CORP·Filed 1998·Granted Oct 26, 1999·35 cites·40 claims
- 1173US11884594B2High strength shaped aluminas and a method of producing such high strength shaped aluminasSASOL USA CORP·Filed 2021·Granted Jan 30, 2024·0 cites·9 claims
- 1269US9340432B2Process for the synthesis of magnesium aluminate spinelsPEOPLES BRIAN·Filed 2013·Granted May 17, 2016·2 cites·25 claims
- 1363US6190917B1Microwave apparatus and method for analysis of asphalt-aggregate compositionsCEM CORP·Filed 1998·Granted Feb 20, 2001·21 cites·19 claims
- 1460US11091396B2High strength shaped aluminas and a method of producing such high strength shaped aluminasSASOL USA CORP·Filed 2017·Granted Aug 17, 2021·0 cites·13 claims
- 1557US7829040B2High temperature high pressure vessel for microwave assisted chemistryCEM CORP·Filed 2009·Granted Nov 9, 2010·1 cites·13 claims
- 1656US2012074136A1Pressure Stepped Microwave Assisted DigestionBARCLAY DAVID A·Filed 2011·Application pending·0 cites
- 1755US5840583AMicrowave assisted chemical processesCEM CORP·Filed 1997·Granted Nov 24, 1998·15 cites·30 claims
- 1855US5531976APreparation of alumina having increased porosityCONDEA VISTA CO·Filed 1995·Granted Jul 2, 1996·18 cites·10 claims
- 1946US10023785B2Thixotropic agents and methods of useBARCLAY DAVID A·Filed 2012·Granted Jul 17, 2018·0 cites·7 claims
- 2042US2008193369A1Process for Producing High Porosity Boehmite AluminasBARCLAY DAVID A·Filed 2006·Application pending·0 cites
- 2141US4746503AMethod of treating alumina to increase slurry lifeVISTA CHEMICAL·Filed 1986·Granted May 24, 1988·6 cites·12 claims
- 2240US8921119B2High temperature high pressure vessel for microwave assisted chemistryHARGETT JR WYATT·Filed 2010·Granted Dec 30, 2014·0 cites·7 claims
- 2338US2001008773A1Microwave apparatus and method for analysis of asphalt-aggregate compositionsFiled 2001·Application pending·0 cites
- 2436US5569325AProcess for growing crystalsCONDEA VISTA CO·Filed 1991·Granted Oct 29, 1996·4 cites·16 claims
- 2529US5316752AProcess for preparing mixed oxidesVISTA CHEMICAL·Filed 1991·Granted May 31, 1994·2 cites·9 claims
- 2627US4608511AEnergy filter for a Geiger-Muller tubePHILIPS CORP·Filed 1984·Granted Aug 26, 1986·0 cites·19 claims
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