Inventor
HOLTERMANN DENNIS L
US36 patents
⚠️ This page may combine multiple inventors who share the name “HOLTERMANN DENNIS L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHEVRON RES & TECH
8 patentsUS5149894ASep 22, 1992
Alkylation using zeolite SSZ-25
CHEVRON RES & TECH154 citations99
US5300210AApr 5, 1994
Hydrocarbon conversion process using zeolite SSZ-32 as catalyst
CHEVRON RES & TECH56 citations96
US5155075AOct 13, 1992
Low temperature regeneration of coke deactivated reforming catalysts
CHEVRON RES & TECH68 citations96
US5322615AJun 21, 1994
Method for removing sulfur to ultra low levels for protection of reforming catalysts
CHEVRON RES & TECH63 citations95
US5200377AApr 6, 1993
Zeolite SSZ-28
CHEVRON RES & TECH43 citations93
US5202014AApr 13, 1993
Zeolite SSZ-25
CHEVRON RES & TECH49 citations92
US5114565AMay 19, 1992
Reforming naphtha with boron-containing large-pore zeolites
CHEVRON RES & TECH27 citations92
US5439583AAug 8, 1995
Sulfur removal systems for protection of reforming crystals
CHEVRON RES & TECH11 citations73
CHEVRON RES
6 patentsUS4910006AMar 20, 1990
Zeolite SSZ-26
CHEVRON RES241 citations99
US5166111ANov 24, 1992
Low-aluminum boron beta zeolite
CHEVRON RES33 citations96
US5120425AJun 9, 1992
Use of zeolite SSZ-33 in hydrocarbon conversion processes
CHEVRON RES23 citations92
US5007997AApr 16, 1991
Zeolite SSZ-26
CHEVRON RES27 citations89
US5393407AFeb 28, 1995
Hydrocarbon conversion utilizing a low-aluminum boron beta zeolite
CHEVRON RES10 citations74
US5166112ANov 24, 1992
Isomerization catalyst and process for its use
CHEVRON RES13 citations74
CHEVRON USA INC
6 patentsUS5397454AMar 14, 1995
Hydrocarbon conversion process using zeolite SSZ-32 having constraint index of 13 or greater
CHEVRON USA INC46 citations96
US5693215ADec 2, 1997
Low-Aluminum boron beta zeolite
CHEVRON USA INC18 citations92
US6005154ADec 21, 1999
Isomerization process using zeolite SSZ-25
CHEVRON USA INC10 citations74
US5691463ANov 25, 1997
Alkylation process using zeolite SSZ-25
CHEVRON USA INC7 citations74
US5591322AJan 7, 1997
Dewaxing process using zeolite SSZ-25
CHEVRON USA INC9 citations74
US5421992AJun 6, 1995
Hydrocarbon conversion process using zeolite SSZ-25
CHEVRON USA INC8 citations74
CHEVRON PHILLIPS CHEMICAL CO
5 patentsUS7932425B2Apr 26, 2011
Method of enhancing an aromatization catalyst
CHEVRON PHILLIPS CHEMICAL CO71 citations97
US8362310B2Jan 29, 2013
Method of enhancing an aromatization catalyst
CHEVRON PHILLIPS CHEMICAL CO21 citations92
US6551660B2Apr 22, 2003
Method for removing reactive metal from a reactor system
CHEVRON PHILLIPS CHEMICAL CO30 citations90
US6419986B1Jul 16, 2002
Method for removing reactive metal from a reactor system
CHEVRON PHILLIPS CHEMICAL CO27 citations90
US9347139B2May 24, 2016
Methods of removing a protective layer
CHEVRON PHILLIPS CHEMICAL CO0 citations49
CHEVRON CHEM CO
4 patentsUS6207042B1Mar 27, 2001
Reforming using a bound halided zeolite catalyst
CHEVRON CHEM CO88 citations96
US6190539B1Feb 20, 2001
Reforming using a bound halided zeolite catalyst
CHEVRON CHEM CO109 citations96
US5883031AMar 16, 1999
Low temperature regeneration of coke deactivated reforming catalysts
CHEVRON CHEM CO40 citations92
US5914028AJun 22, 1999
Reforming process with catalyst pretreatment
CHEVRON CHEM CO14 citations74