KemPharm
Utility Patents

Last updated:

List of all KemPharm patents 21 in total

Status Patent
Grant
Utility: Levorphanol prodrugs and processes for making and using them External link
Filling date: 27 Sep 2025 Issue date: 1 Feb 2022
Grant
Utility: Dextrorphan prodrugs and processes for making and using them External link
Filling date: 27 Sep 2025 Issue date: 4 Jan 2022
Grant
Utility: D-amphetamine compounds, compositions, and processes for making and using the same External link
Filling date: 27 Sep 2025 Issue date: 16 Nov 2021
Grant
Utility: D-amphetamine compounds, compositions, and processes for making and using the same External link
Filling date: 27 Sep 2025 Issue date: 5 Oct 2021
Grant
Utility: Compositions comprising methylphenidate-prodrugs, processes of making and using the same External link
Filling date: 27 Sep 2025 Issue date: 1 Jun 2021
Grant
Utility: Compositions comprising methylphenidate-prodrugs, processes of making and using the same External link
Filling date: 27 Sep 2025 Issue date: 1 Jun 2021
Grant
Utility: Compositions comprising methylphenidate-prodrugs, processes of making and using the same External link
Filling date: 27 Sep 2025 Issue date: 23 Mar 2021
Grant
Utility: Compositions comprising methylphenidate-prodrugs, processes of making and using the same External link
Filling date: 27 Sep 2025 Issue date: 23 Mar 2021
Grant
Utility: Therapeutic formulation for reduced drug side effects External link
Filling date: 27 Sep 2025 Issue date: 9 Feb 2021
Grant
Utility: Pharmaceutically acceptable salts and polymorphic forms of hydrocodone benzoic acid enol ester and processes for making same External link
Filling date: 27 Sep 2025 Issue date: 22 Dec 2020
Grant
Utility: Compositions comprising methylphenidate-prodrugs, processes of making and using the same External link
Filling date: 27 Sep 2025 Issue date: 8 Dec 2020
Grant
Utility: Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof External link
Filling date: 27 Sep 2025 Issue date: 1 Dec 2020
Grant
Utility: Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of oxymorphone, prodrugs, methods of making and use thereof External link
Filling date: 27 Sep 2025 Issue date: 1 Sep 2020
Grant
Utility: Methylphenidate-prodrugs, processes of making and using the same External link
Filling date: 27 Sep 2025 Issue date: 1 Sep 2020
Grant
Utility: Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof External link
Filling date: 27 Sep 2025 Issue date: 19 May 2020
Grant
Utility: Methylphenidate-prodrugs, processes of making and using the same External link
Filling date: 27 Sep 2025 Issue date: 10 Mar 2020
Grant
Utility: Methylphenidate-prodrugs, processes of making and using the same External link
Filling date: 27 Sep 2025 Issue date: 10 Mar 2020
Grant
Utility: Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof External link
Filling date: 27 Sep 2025 Issue date: 3 Mar 2020
Grant
Utility: Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of oxycodone, prodrugs, methods of making and use thereof External link
Filling date: 27 Sep 2025 Issue date: 28 Jan 2020
Grant
Utility: Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of oxymorphone, prodrugs, methods of making and use thereof External link
Filling date: 27 Sep 2025 Issue date: 5 Nov 2019
Grant
Utility: Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydromorphone, prodrugs, methods of making and use thereof External link
Filling date: 27 Sep 2025 Issue date: 15 Oct 2019

Showing 1 to 21 of 21 patents.