Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DA

Dan M. Arnold — 33 Patents

Chevron: 14 patents #313 of 4,788Top 7%
HSHalliburton Energy Services: 9 patents #875 of 5,294Top 20%
HSHalliburton Logging Services: 6 patents #5 of 90Top 6%
UNUnknown: 3 patents #7,366 of 83,584Top 9%
Houston, TX: #455 of 21,073 inventorsTop 3%
Texas: #3,395 of 125,132 inventorsTop 3%
Overall (All Time): #105,480 of 4,157,543Top 3%
33 Patents All Time
Dan M. Arnold has been granted 33 US patents while listed as an inventor at Chevron. The first was granted in 1980 and the most recent in September 1998. Dan M. Arnold ranks #105,480 of 4,157,543 US inventors in our database (top 2.5%). Patent records list Dan M. Arnold in Houston, TX, US.

Issued Patents All Time

Showing 1–25 of 33 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5810485 Auxiliary bearing system Wilbur Leslie Dublin, Jr. 1998-09-22
5806988 Auxiliary bearing system Wilbur Leslie Dublin, Jr. 1998-09-15
5642944 Auxiliary bearing system Wilbur Leslie Dublin, Jr. 1997-07-01
5483063 Zero-spaced epithermal neutron moisture detection system Hugh E. Hall, Jr. 1996-01-09
5461909 Oxygen activation method for quantitative water flow measurements within and behind well bore casing 1995-10-31 $12,170,000
5077471 Method and apparatus for measuring horizontal fluid flow in downhole formations using injected radioactive tracer monitoring Harry D. Smith, Jr., Larry L. Gadeken 1991-12-31 $25,940,000
5045692 Simultaneous fluid flow and fluid density measurements using rotameter and nuclear technology 1991-09-03 $4,489,000
5021652 Directional gamma ray spectrometer 1991-06-04 $36,086,000
4861986 Tracer injection method 1989-08-29 $11,724,000
4825071 Gamma ray borehole logging method and apparatus having compensation for borehole attenuation effects Larry L. Gadeken 1989-04-25 $3,545,000
4604522 Method and apparatus for logging a borehole employing dual radiation detectors 1986-08-05 $3,515,000
4585939 Multi-function natural gamma ray logging system Harry D. Smith, Jr. 1986-04-29 $3,831,000
4574193 Method for logging fluid flow rate, water fraction, and/or salinity of water flowing into a well Harry D. Smith, Jr. 1986-03-04 $7,520,000
4529877 Borehole compensated density logs corrected for naturally occurring gamma rays 1985-07-16 $4,327,000
4501964 Borehole compensated oxygen activation nuclear well logging 1985-02-26 $10,662,000
4495805 In-situ permeability determining method Donald J. Dowling, Albert P. Richter, Jr., Wayne F. Warren 1985-01-29 $11,945,000
4493998 Method for monitoring drilling materials for gamma ray activity Harry D. Smith, Jr., Ward E. Schultz 1985-01-15 $8,259,000
4459479 Determination of casing thickness using a natural gamma ray spectroscopy technique Harry D. Smith, Jr., Carl A. Robbins 1984-07-10 $4,769,000
4439676 Natural gamma ray logging with borehole effect compensation Harry D. Smith, Jr. 1984-03-27 $6,388,000
4436996 Borehole compensated KUT log Harry D. Smith, Jr., Ward E. Schultz 1984-03-13 $6,872,000
4424444 Method for simultaneous measurement of borehole and formation neutron lifetimes Harry D. Smith, Jr. 1984-01-03 $12,440,000
4365154 Detection of impurities in a fluid containing free gas using nuclear techniques Hans J. Paap 1982-12-21 $5,659,000
4352288 Measurement of salt content in petroleum flow lines Hans J. Paap, Richard A. Meador 1982-10-05 $28,672,000
4297575 Simultaneous gamma ray measurement of formation bulk density and casing thickness Harry D. Smith, Jr., Kenneth J. Smith 1981-10-27 $10,603,000
4287415 Measurement of flowing water salinity within or behind wellbore casing 1981-09-01 $15,289,000