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

Robert Kupper — 38 Patents

RTRhodes Technologies: 16 patents #1 of 27Top 4%
PPPurdue Pharma: 16 patents #22 of 189Top 15%
PPPurdue Pharmaceuticals: 10 patents #8 of 12Top 70%
TLThe P.F. Laboratories: 6 patents #4 of 9Top 45%
WCW.R. Grace & Co.-Conn.: 5 patents #144 of 1,045Top 15%
ESEuro-Celtique S.A.: 5 patents #42 of 215Top 20%
RPRhodes Pharmaceuticals: 3 patents #3 of 15Top 20%
W&W. R. Grace &: 2 patents #100 of 433Top 25%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
East Greenwich, RI: #9 of 687 inventorsTop 2%
Rhode Island: #84 of 6,211 inventorsTop 2%
Overall (All Time): #84,675 of 4,157,543Top 3%
38 Patents All Time
Robert Kupper has been granted 38 US patents while listed as an inventor at Purdue Pharma. The first was granted in 1987 and the most recent in October 2024. Robert Kupper ranks #84,675 of 4,157,543 US inventors in our database (top 2.0%). Patent records list Robert Kupper in East Greenwich, RI, US.

Issued Patents All Time

Showing 1–25 of 38 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12128042 Tamper resistant immediate release formulations Akwete L. Adjei, Sibao Chen, Vincent Mancinelli 2024-10-29
12060361 Process for preparing oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2024-08-13
11773107 Opioid ketal compounds and uses thereof Raymond C. Glowaky 2023-10-03
11731979 Opioid ketal compounds and uses thereof Raymond C. Glowaky 2023-08-22
11571392 Systems and methods for increasing stability of dronabinol compositions 2023-02-07
11384091 Process for preparing oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2022-07-12
11236098 Process for preparing oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2022-02-01
11173155 Tamper resistant immediate release formulations Akwete L. Adjei, Sibao Chen, Vincent Mancinelli 2021-11-16
11130765 Opioid ketal compounds and uses thereof Raymond C. Glowaky 2021-09-28
11091496 Opioid ketal compounds and uses thereof Raymond C. Glowaky 2021-08-17
10988480 Opioid ketal compounds and uses thereof Raymond C. Glowaky 2021-04-27
10696684 Process for preparing oxycodone hydrochloride having less than 25 PPM 14-hydroxycodeinone Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2020-06-30
10689389 Process for preparing oxycodone compositions Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2020-06-23
10624859 Systems and methods for increasing stability of dronabinol compositions 2020-04-21
10407434 Process for preparing oxycodone compositions Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2019-09-10
10259819 Process for preparing oxycodone compositions Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2019-04-16
9777011 Process for preparing oxycodone compositions Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2017-10-03
9522919 Oxycodone compositions Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2016-12-20
9073933 Oxycodone hydrochloride having less than 25 PPM 14-hydroxycodeinone Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2015-07-07
8822687 8a,14-dihydroxy-7,8-dihydrocodeinone Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2014-09-02
7939543 Method of reducing α, β unsaturated ketones in opioid compositions 2011-05-10
7683072 Oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2010-03-23
7674800 Oxycodone hydrochloride having less than 25 PPM 14-hydroxycodeinone Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2010-03-09
7674799 Oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2010-03-09
7674798 Oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone Robert Chapman, Lonn S. Rider, Qi-Zhong Hong, Donald J. Kyle 2010-03-09