Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RC

Robert Marshall Campbell — 50 Patents

Dow Global Technologies: 8 patents #568 of 4,534Top 15%
The Dow Chemical: 4 patents #847 of 4,115Top 25%
HP: 3 patents #4,446 of 16,619Top 30%
HEHewlett Packard Enterprise: 1 patents #2,081 of 4,473Top 50%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Miami, FL: #28 of 4,605 inventorsTop 1%
Florida: #566 of 67,251 inventorsTop 1%
Overall (All Time): #53,599 of 4,157,543Top 2%
50 Patents All Time

Issued Patents All Time

Showing 26–50 of 50 patents

Patent #TitleCo-InventorsDate
10006742 Sight adjustable rotating smart phone mount for firearms 2018-06-26
9519489 Boot from modified image Judy Wathen 2016-12-13
9454260 System and method for enabling multi-display input John P. McCarthy, Bradley Neal Suggs 2016-09-27
9274547 Display with an optical sensor John P. McCarthy, Bradley Neal Suggs 2016-03-01
9213410 Associated file Bradley Neal Suggs, John P. McCarthy 2015-12-15
8404905 Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloroacetone levels William J. Kruper, Jr., Tina L. Arrowood, Bruce M. Bell, John R. Briggs, Bruce D. Hook +3 more 2013-03-26
8304563 Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloroacetone levels William J. Kruper, Jr., Tina L. Arrowood, Bruce M. Bell, John R. Briggs, Bruce D. Hook +3 more 2012-11-06
8236975 Process for the conversion of a crude glycerol, crude mixtures of naturally derived multicomponent aliphatic hydrocarbons or esters thereof to a chlorohydrin Bruce D. Hook, John R. Briggs, William J. Kruper, Jr., David James Schreck, Richard D. Varjian +1 more 2012-08-07
8088957 Conversion of a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin William J. Kruper, Jr., David James Schreck, Kenneth L. Kearns, Jr., Richard D. Varjian, Mark Jones +3 more 2012-01-03
7910781 Process for the conversion of a crude glycerol, crude mixtures of naturally derived multihydroxylated aliphatic hydrocarbons or esters thereof to a chlorohydrin Bruce D. Hook, John R. Briggs, William J. Kruper, Jr., David James Schreck, Richard D. Varjian +1 more 2011-03-22
7906690 Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloracetone levels William J. Kruper, Jr., Tina L. Arrowood, Bruce M. Bell, John R. Briggs, Bruce D. Hook +3 more 2011-03-15
6350922 Process for making 2,3-dihalopropanols Paul C. Vosejpka, Dennis A. Hucul, Bob R. Maughon, Larry N. Ito 2002-02-26
5836949 Bioabsorbable intermedullary implant system and methods of use C. Mauli Agrawal 1998-11-17
5800434 Segmental rib carriage instrumentation and associated methods 1998-09-01
D381499 Key holder 1997-07-29
5632744 Segmental rib carriage instrumentation and associated methods 1997-05-27
5620414 Apparatus and method for effecting surgical incision through use of a fluid jet 1997-04-15
5340475 On-line supercritical fluid extraction multidimensional chromatographic system Hernan J. Cortes 1994-08-23
5261908 Expandable vertical prosthetic rib 1993-11-16
5233877 Starter drive gear 1993-08-10
5234599 On-line multidimensional chromatographic system with large volume injection handling for supercritical fluid chromatography Hernan J. Cortes, R. Paul Himes, Curtis D. Pfeffer 1993-08-10
5139681 On-line multidimensional chromatographic system with large volume injection handling for supercritical fluid chromatography Hernan J. Cortes, R. Paul Himes, Curtis D. Pfeiffer 1992-08-18
5092889 Expandable vertical prosthetic rib 1992-03-03
5030235 Prosthetic first rib 1991-07-09
4965955 Capture apparatus for marine animals Mark G. Duer 1990-10-30