Inventor
JOHNSON DAVID L
CA96 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSON DAVID L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MOBIL OIL CORP
8 patentsUS6222087B1Apr 24, 2001
Catalytic production of light olefins rich in propylene
MOBIL OIL CORP77 citations96
US5372706ADec 13, 1994
FCC regeneration process with low NOx CO boiler
MOBIL OIL CORP54 citations93
US5741469AApr 21, 1998
Process scheme for SOx removal from flue gases
MOBIL OIL CORP45 citations92
US5728358AMar 17, 1998
Sox sorbent regeneration
MOBIL OIL CORP32 citations92
US5458861AOct 17, 1995
Desulfurizing a gas stream
MOBIL OIL CORP50 citations92
US5382352AJan 17, 1995
Conversion of NOx in FCC bubbling bed regenerator
MOBIL OIL CORP25 citations92
US5531884AJul 2, 1996
FCC catalyst stripper
MOBIL OIL CORP43 citations91
US5389232AFeb 14, 1995
Riser cracking for maximum C3 and C4 olefin yields
MOBIL OIL CORP94 citations90
CYPRESS SEMICONDUCTOR CORP
7 patentsUS6864710B1Mar 8, 2005
Programmable logic device
CYPRESS SEMICONDUCTOR CORP121 citations98
US6512395B1Jan 28, 2003
Configurable memory for programmable logic circuits
CYPRESS SEMICONDUCTOR CORP54 citations96
US6388464B1May 14, 2002
Configurable memory for programmable logic circuits
CYPRESS SEMICONDUCTOR CORP61 citations96
US6608500B1Aug 19, 2003
I/O architecture/cell design for programmable logic device
CYPRESS SEMICONDUCTOR CORP23 citations93
US6384628B1May 7, 2002
Multiple voltage supply programmable logic device
CYPRESS SEMICONDUCTOR CORP70 citations93
US5996091ANov 30, 1999
CPLD serial programming with extra read register
CYPRESS SEMICONDUCTOR CORP28 citations93
US5898701AApr 27, 1999
Method and apparatus for testing a device
CYPRESS SEMICONDUCTOR CORP37 citations93
(unassigned)
6 patentsUS6642426B1Nov 4, 2003
Fluid-bed aromatics alkylation with staged injection of alkylating agents
103 citations98
US5720138AFeb 24, 1998
Metallic wall framing, method and apparatus for producing same
74 citations96
US6921244B2Jul 26, 2005
Bleed valve system
30 citations93
US6557254B1May 6, 2003
Metallic wall framing, method and apparatus for producing same
32 citations93
US5638201AJun 10, 1997
Optically active diffractive device
49 citations91
US5538623AJul 23, 1996
FCC catalyst stripping with vapor recycle
34 citations90
SCHLUMBERGER TECHNOLOGY CORP
6 patentsUS4831600AMay 16, 1989
Borehole logging method for fracture detection and evaluation
SCHLUMBERGER TECHNOLOGY CORP103 citations95
US7334661B2Feb 26, 2008
Acoustic logging tool sleeve
SCHLUMBERGER TECHNOLOGY CORP32 citations92
US7095676B2Aug 22, 2006
Assessing a solids deposit in an oilfield pipe
SCHLUMBERGER TECHNOLOGY CORP19 citations92
US5869755AFeb 9, 1999
Porosity estimation method in carbonate rock
SCHLUMBERGER TECHNOLOGY CORP54 citations92
US5485431AJan 16, 1996
Measurement of nonlinear formation parameters using sonic borehole tool
SCHLUMBERGER TECHNOLOGY CORP21 citations92
US5646379AJul 8, 1997
Attentuator for borehole acoustic waves
SCHLUMBERGER TECHNOLOGY CORP18 citations89
ATLANTIC RICHFIELD CO
3 patentsUS5866517AFeb 2, 1999
Method and spacer fluid composition for displacing drilling fluid from a wellbore
ATLANTIC RICHFIELD CO177 citations99
US5874387AFeb 23, 1999
Method and cement-drilling fluid cement composition for cementing a wellbore
ATLANTIC RICHFIELD CO131 citations98
US5989336ANov 23, 1999
Cement composition
ATLANTIC RICHFIELD CO72 citations95
PIONEER HI BRED INT
3 patentsUS5991025ANov 23, 1999
Near infrared spectrometer used in combination with an agricultural implement for real time grain and forage analysis
PIONEER HI BRED INT140 citations98
US9011222B2Apr 21, 2015
Combine harvester and associated method for gathering grain
PIONEER HI BRED INT82 citations93
US7412880B2Aug 19, 2008
Device and method for screening a plant population for wind damage resistance traits
PIONEER HI BRED INT20 citations89
VISA INT SERVICE ASS
3 patentsUSRE38255ESep 23, 2003
Method and apparatus for distributing currency
VISA INT SERVICE ASS193 citations97
USRE37122EApr 3, 2001
Method and apparatus for distributing currency
VISA INT SERVICE ASS356 citations97
USRE36365ENov 2, 1999
Method and apparatus for distributing currency
VISA INT SERVICE ASS370 citations97
PYNG MEDICAL CORP
3 patentsUS6761726B1Jul 13, 2004
Method and apparatus for the intraosseous introduction of a device such as an infusion tube
PYNG MEDICAL CORP156 citations96
US7347840B2Mar 25, 2008
Patch for locating a target zone for penetration
PYNG MEDICAL CORP59 citations95
US5817052AOct 6, 1998
Apparatus for intraosseous infusion or aspiration
PYNG MEDICAL CORP136 citations94
UNIV KENT STATE OHIO
2 patentsHALLIBURTON CO
1 patentVISA INT
1 patentFINDLAY JUDITH M
1 patentAVIDAN AMOS A
1 patentIBM
1 patentEXXONMOBIL CHEM PATENTS INC
1 patentGOLDMAN DANIEL M
1 patentSHEEHY JOHN D
1 patentDU BING
1 patentShowing the top 50 of 96 patents by PatentIndex Score.