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KEMPHARM INC
US50 patents
Top patents by PatentIndex Score
US9650387B2May 16, 2017
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and uses thereof
KEMPHARM INC7 citations92
US9132125B2Sep 15, 2015
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
KEMPHARM INC14 citations92
US8927716B2Jan 6, 2015
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
KEMPHARM INC16 citations92
US8828978B2Sep 9, 2014
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
KEMPHARM INC16 citations92
US8816083B2Aug 26, 2014
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydromorphone, prodrugs, methods of making and use thereof
KEMPHARM INC18 citations92
US8748413B2Jun 10, 2014
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
KEMPHARM INC17 citations92
US10759778B2Sep 1, 2020
Methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC3 citations84
US10584112B2Mar 10, 2020
Methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC7 citations84
US10584113B2Mar 10, 2020
Methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC7 citations84
US9872915B2Jan 23, 2018
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
KEMPHARM INC2 citations84
US9850252B2Dec 26, 2017
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of oxycodone, prodrugs, methods of making and use thereof
KEMPHARM INC6 citations84
US9597403B2Mar 21, 2017
Amino acid conjugates of quetiapine, process for making and using the same
KEMPHARM INC4 citations84
US9566343B2Feb 14, 2017
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydromorphone, prodrugs, methods of making and use thereof
KEMPHARM INC8 citations84
US9453037B2Sep 27, 2016
Methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC9 citations84
US9125947B2Sep 8, 2015
Phenylethanoic acid, phenylpropanoic acid and phenylpropenoic acid conjugates and prodrugs of hydrocodone, method of making and use thereof
KEMPHARM INC13 citations84
US9682076B2Jun 20, 2017
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of oxymorphone, prodrugs, methods of making and use thereof
KEMPHARM INC4 citations83
US11505537B2Nov 22, 2022
Compositions comprising methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC1 citations73
US11234975B2Feb 1, 2022
Levorphanol prodrugs and processes for making and using them
KEMPHARM INC4 citations73
US11174229B2Nov 16, 2021
D-amphetamine compounds, compositions, and processes for making and using the same
KEMPHARM INC2 citations73
US11136295B2Oct 5, 2021
D-amphetamine compounds, compositions, and processes for making and using the same
KEMPHARM INC1 citations73
US10954213B2Mar 23, 2021
Compositions comprising methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC1 citations73
US10954212B2Mar 23, 2021
Compositions comprising methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC1 citations73
US10858341B2Dec 8, 2020
Compositions comprising methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC1 citations73
US10231960B2Mar 19, 2019
Methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC1 citations73
US11021460B2Jun 1, 2021
Compositions comprising methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC0 citations63
US11021459B2Jun 1, 2021
Compositions comprising methylphenidate-prodrugs, processes of making and using the same
KEMPHARM INC0 citations63
US10654863B2May 19, 2020
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations63
US10358452B2Jul 23, 2019
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and uses thereof
KEMPHARM INC0 citations63
US10351573B2Jul 16, 2019
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and uses thereof
KEMPHARM INC0 citations63
US9889198B2Feb 13, 2018
Fatty acid conjugates of quetiapine, process for making and using the same
KEMPHARM INC1 citations63
US9890150B2Feb 13, 2018
Fatty acid conjugates of quetiapine, process for making and using the same
KEMPHARM INC1 citations63
US9549923B2Jan 24, 2017
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and uses thereof
KEMPHARM INC1 citations63
US9511149B2Dec 6, 2016
Fatty acid conjugates of quetiapine, process for making and using the same
KEMPHARM INC1 citations63
US11214544B2Jan 4, 2022
Dextrorphan prodrugs and processes for making and using them
KEMPHARM INC1 citations62
US10912744B2Feb 9, 2021
Therapeutic formulation for reduced drug side effects
KEMPHARM INC0 citations62
US10870654B2Dec 22, 2020
Pharmaceutically acceptable salts and polymorphic forms of hydrocodone benzoic acid enol ester and processes for making same
KEMPHARM INC0 citations52
US10849981B2Dec 1, 2020
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations52
US10577376B2Mar 3, 2020
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations52
US10544153B2Jan 28, 2020
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of oxycodone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations52
US10441661B2Oct 15, 2019
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydromorphone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations52
US10351574B2Jul 16, 2019
Pharmaceutically acceptable salts and polymorphic forms of hydrocodone benzoic acid enol ester and processes for making same
KEMPHARM INC0 citations52
US10258696B2Apr 16, 2019
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydromorphone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations52
US10144740B2Dec 4, 2018
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of oxycodone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations52
US10064956B2Sep 4, 2018
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydromorphone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations52
US10010615B2Jul 3, 2018
Amino acid conjugates of quetiapine, process for making and using the same
KEMPHARM INC0 citations52
US9849185B2Dec 26, 2017
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydromorphone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations52
US10758528B2Sep 1, 2020
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of oxymorphone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations51
US10463660B2Nov 5, 2019
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of oxymorphone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations51
US10071091B2Sep 11, 2018
Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of oxymorphone, prodrugs, methods of making and use thereof
KEMPHARM INC0 citations51
US9815844B2Nov 14, 2017
Pharmaceutically acceptable salts and polymorphic forms of hydrocodone benzoic acid enol ester and processes for making same
KEMPHARM INC0 citations45