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

David L. Johnson — 42 Patents

ExxonMobil: 20 patents #520 of 10,161Top 6%
Visa: 4 patents #470 of 2,009Top 25%
ARAtlantic Richfield: 4 patents #151 of 1,068Top 15%
PMPyng Medical: 4 patents #6 of 20Top 30%
HSHalliburton Energy Services: 1 patents #4,185 of 5,294Top 80%
BRBristol-Meyers: 1 patents #205 of 350Top 60%
Motorola: 1 patents #8,702 of 14,142Top 65%
KRKellogg Brown & Root: 1 patents #119 of 240Top 50%
ODOrtho-Clinical Diagnostics: 1 patents #108 of 238Top 50%
Schlumberger Technology: 1 patents #3,946 of 7,293Top 55%
Doylestown, PA: #11 of 956 inventorsTop 2%
Pennsylvania: #1,017 of 74,527 inventorsTop 2%
Overall (All Time): #72,062 of 4,157,543Top 2%
42 Patents All Time
David L. Johnson has been granted 42 US patents while listed as an inventor at ExxonMobil. The first was granted in 1980 and the most recent in March 2022. David L. Johnson ranks #72,062 of 4,157,543 US inventors in our database (top 1.7%). Patent records list David L. Johnson in Doylestown, PA, US.

Patents per Year

Patents granted per year, 1980 to 2022Bar chart with a peak of 5 patents in 1995.peak 51980: 1 patents19801989: 3 patents1990: 1 patents1994: 1 patents19941995: 5 patents1996: 2 patents1998: 4 patents19981999: 5 patents2000: 1 patents2001: 2 patents20012003: 2 patents2004: 1 patents2005: 1 patents20052006: 2 patents2008: 1 patents2010: 1 patents20102012: 2 patents2013: 3 patents2015: 1 patents20152018: 1 patents2019: 1 patents2022: 1 patents2022

Issued Patents All Time

Showing 1–25 of 42 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11283923 Method and apparatus for handling citizen callback of public-safety officer Thomas S. Messerges, Janet A Manzanares, Steven D. Tine, Jon Milan 2022-03-22 $11,366,000
10173946 Apparatus and process for producing gasoline, olefins and aromatics from oxygenates Bing Du, Samuel A. Tabak, Mitch L. Hindman, Eric B. Shen, Mohsen N. Harandi +7 more 2019-01-08 $226,211,000
9938205 Apparatus and process for producing gasoline, olefins and aromatics from oxygenates Bing Du, Samuel A. Tabak, Mitch L. Hindman, Eric B. Shen, Mohsen N. Harandi +6 more 2018-04-10 $89,062,000
8981171 Process for the purification of paraxylene Mark P. Hagemeister, John J. Monson 2015-03-17 $112,346,000
8571697 Apparatus and method for double end manufacturing of components Jeffrey D. Chandler 2013-10-29
8507744 Process for the purification of paraxylene Mark P. Hagemeister, John J. Monson 2013-08-13 $154,214,000
8486027 Bone-penetrating member for intraosseous infusion and aspiration devices Judith M. Findlay, Misha Krasnich, Michael W. Jacobs 2013-07-16
8313713 Stabilizing a cuvette during measurement Merrit N. Jacobs, Robert A. Burkovich 2012-11-20
8252967 Process for the purification of paraxylene Mark P. Hagemeister, John J. Monson 2012-08-28 $181,740,000
7744746 FCC catalyst stripper configuration Brian A. Cunningham, Christopher G. Smalley, Richard C. Senior, Joseph S. Famolaro, Rathna P. Davuluri +2 more 2010-06-29 $101,397,000
7347840 Patch for locating a target zone for penetration Judith M. Findlay, Misha Krasnich, Michael W. Jacobs 2008-03-25
7119239 Manufacture of xylenes using reformate Robert G. Tinger, Robert A. Ware, John S. Buchanan, Xiaobing Feng, Shifang Luo +1 more 2006-10-10 $225,889,000
7040143 Method and apparatus for testing surface characteristics of a material Karl D. Kersker, David Ernest Richardson, Troy Charles Stratton 2006-05-09 $11,973,000
6902593 Separation device to remove fine particles Richard Miller, Eusebius Gbordzoe, Yong-Lin Yang, Suisheng M. Dou 2005-06-07
6761726 Method and apparatus for the intraosseous introduction of a device such as an infusion tube Judith M. Findlay, Misha Krasnich, Michael W. Jacobs 2004-07-13
6642426 Fluid-bed aromatics alkylation with staged injection of alkylating agents Robert G. Tinger, Robert A. Ware, Sergei Yurchak 2003-11-04
RE38255 Method and apparatus for distributing currency Jack Levine, Priscilla C. Brandt, Nydia Jackson, Helen Clark 2003-09-23
6222087 Catalytic production of light olefins rich in propylene Khushrav E. Nariman, Robert A. Ware 2001-04-24
RE37122 Method and apparatus for distributing currency Jack Levine, Priscilla C. Brandt, Nydia Jackson, Helen Clark 2001-04-03
6027704 Process for the reduction of SO.sub.2 from wet lime/limestone tailgas in power plant desulfurization processes Khushrav E. Nariman, David L. Stern 2000-02-22
5989336 Cement composition Robert B. Carpenter, J. Benjamin Bloys 1999-11-23 $61,681,000
RE36365 Method and apparatus for distributing currency Jack Levine, Priscilla C. Brandt, Nydia Jackson, Helen Clark 1999-11-02
5954942 Catalytic cracking with delayed quench Peter M. Adornato, Amos A. Avidan 1999-09-21 $294,789,000
5874387 Method and cement-drilling fluid cement composition for cementing a wellbore Robert B. Carpenter 1999-02-23 $63,937,000
5866517 Method and spacer fluid composition for displacing drilling fluid from a wellbore Robert B. Carpenter 1999-02-02 $47,899,000