Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Charm Sciences › Robert S. Salter
RS

Robert S. Salter — 24 Patents

CSCharm Sciences: 15 patents #6 of 42Top 15%
FLFalconbridge Limited: 2 patents #5 of 44Top 15%
ALAtomic Energy Of Canada Limited: 1 patents #77 of 235Top 35%
Reading, MA: #30 of 473 inventorsTop 7%
Massachusetts: #4,431 of 88,656 inventorsTop 5%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Robert S. Salter has been granted 24 US patents while listed as an inventor at Charm Sciences. The first was granted in 1980 and the most recent in May 2025. Robert S. Salter ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Robert S. Salter in Reading, MA, US.

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDate
12291704 Universal test device, assembly, and method Paul E. Graham, Jeffrey Verrette, Richard T. Skiffington 2025-05-06
11427849 Culture medium method and device Gregory W. Durbin, Stanley E. Charm, Richard T. Skiffington 2022-08-30
11009446 Plate reader observation methods and operation Richard T. Skiffington, Robert J. Markovsky, Stanley E. Charm, Paul E. Graham, Jovo Djuragic 2021-05-18
10988720 Peel plate assembly Richard T. Skiffington, Robert J. Markovsky, Byron Roberts, Stanley E. Charm, Benjamin Mathieu 2021-04-27
10563164 Plate reader Richard T. Skiffington, Robert J. Markovsky, Stanley E. Charm, Paul E. Graham, Byron A. Roberts 2020-02-18
10495563 Plate reader observation methods and operation Richard T. Skiffington, Robert J. Markovsky, Stanley E. Charm 2019-12-03
9376704 Test kit and method for detecting bacteriophage Gregory W. Durbin 2016-06-28
8476064 Inhibition assay method and device for detection of antibiotics Steven J. Saul, Martin T. Rossi 2013-07-02
8236515 Method for detecting ATP Stanley E. Charm, Cheryl B. Francisco, Robert J. Markovsky, Steven J. Saul 2012-08-07
7993871 Sampling method and device Richard T. Skiffington, John F. Fitchen 2011-08-09
7897365 Method for adjusting antibiotic sensitivity of a test culture Steven J. Saul, Martin T. Rossi, Robert J. Markovsky 2011-03-01
7824878 Sensitive method for detecting low levels of ATP Stanley E. Charm, Cheryl B. Francisco, Robert J. Markovsky, Steven J. Saul 2010-11-02
7494781 Sensitive method for detecting low levels of ATP Stanley E. Charm, Cheryl B. Francisco, Robert J. Markovsky, Steven J. Saul 2009-02-24
7229783 Method for monitoring hygiene Steven J. Saul, Cheryl B. Francisco, Robert J. Markovsky, Stanley E. Charm 2007-06-12
7132249 Method of determining allergenic food on surfaces Stanley E. Charm, Cheryl B. Francisco, Robert J. Markovsky, Steven J. Saul 2006-11-07
6682005 Method of recovery of precious metals & heavy minerals Calvin Leslie Kantonen, John Brian Nichole 2004-01-27
4952329 Separation of polymetallic sulphides by froth flotation Srdjan Bulatovic 1990-08-28
4880529 Separation of polymetallic sulphides by froth flotation Srdjan Bulatovic 1989-11-14
4619814 Process for the recovery of non-ferrous metals from sulphide ores and concentrates Roy S. Boorman, Igor Wilkomirsky 1986-10-28
4555361 Method of reducing the volume of solid radioactive waste Leo P. Buckley, Kenneth A. Burrill, Conrad D. Desjardins 1985-11-26
4415540 Recovery of non-ferrous metals by thermal treatment of solutions containing non-ferrous and iron sulphates Igor Wilkomirsky, Roy S. Boorman 1983-11-15
4372782 Recovery of lead and silver from minerals and process residues Roy S. Boorman, Ross Gilders 1983-02-08
4317803 Recovery of non-ferrous metals by thermal treatments of solutions containing non-ferrous and iron sulphates Igor Wilkomirsky, Roy S. Boorman 1982-03-02
4224122 Recovery of non-ferrous metals by thermal treatment of solutions containing non-ferrous and iron sulphates Igor Wilkomirsky, Roy S. Boorman 1980-09-23

Nearby-Ranked Inventors

Tracy Helen Fung24
Yang Li24
Bo Ching Jiang24
Shoham DEKEL24
David B. Coulter24
Akiko WATANO24
Walter Nistico24
Thomas W. Chalberg, Jr.24
Alan R. Dombrowski24