| Utility: High capacity diketopiperazine microparticles and methods Filling date: 26 Sep 2025 Issue date: 6 Sep 2022 | 10 Jan 2020 | 6 Sep 2022 |
| Utility: Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic .alpha.-N-protected amino ester Filling date: 26 Sep 2025 Issue date: 31 May 2022 | 22 Dec 2020 | 31 May 2022 |
| Utility: Inhalable dry powder pharmaceutical composition Filling date: 26 Sep 2025 Issue date: 19 Apr 2022 | 19 Dec 2019 | 19 Apr 2022 |
| Utility: Catalysis of diketopiperazine synthesis Filling date: 26 Sep 2025 Issue date: 5 Apr 2022 | 24 Feb 2020 | 5 Apr 2022 |
| Utility: Dry powder inhaler and system for drug delivery Filling date: 26 Sep 2025 Issue date: 8 Feb 2022 | 8 Feb 2019 | 8 Feb 2022 |
| Utility: Microcrystalline diketopiperazine compositions and methods Filling date: 26 Sep 2025 Issue date: 7 Dec 2021 | 9 Jul 2020 | 7 Dec 2021 |
| Utility: Dry powder inhaler and system for drug delivery Filling date: 26 Sep 2025 Issue date: 30 Nov 2021 | 16 Apr 2018 | 30 Nov 2021 |
| Utility: Composition and method for reducing hypoglycemia events in diabetes treatment Filling date: 26 Sep 2025 Issue date: 7 Sep 2021 | 21 Jun 2019 | 7 Sep 2021 |
| Utility: Method of drug formulation based on increasing the affinity of active agents for crystalline microparticle surfaces Filling date: 26 Sep 2025 Issue date: 31 Aug 2021 | 4 Oct 2018 | 31 Aug 2021 |
| Utility: Reactor for producing pharmaceutical particles in a precipitation process Filling date: 26 Sep 2025 Issue date: 31 Aug 2021 | 7 Mar 2018 | 31 Aug 2021 |
| Utility: Apparatus and method for cryogranulating a pharmaceutical composition Filling date: 26 Sep 2025 Issue date: 3 Aug 2021 | 6 Nov 2019 | 3 Aug 2021 |
| Utility: Heat-stable dry powder pharmaceutical compositions and methods Filling date: 26 Sep 2025 Issue date: 25 May 2021 | 1 Aug 2019 | 25 May 2021 |
| Utility: Method of drug formulation based on increasing the affinity of crystalline microparticle surfaces for active agents Filling date: 26 Sep 2025 Issue date: 25 May 2021 | 12 Jun 2019 | 25 May 2021 |
| Utility: Use of ultrarapid acting insulin Filling date: 26 Sep 2025 Issue date: 25 May 2021 | 16 Apr 2019 | 25 May 2021 |
| Utility: Diketopiperazine salts for drug delivery and related methods Filling date: 26 Sep 2025 Issue date: 9 Feb 2021 | 27 Jan 2020 | 9 Feb 2021 |
| Utility: Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic .alpha.-N-protected amino ester Filling date: 26 Sep 2025 Issue date: 22 Dec 2020 | 2 Mar 2020 | 22 Dec 2020 |
| Utility: Methods for the synthesis of activated ethylfumarates and their use as intermediates Filling date: 26 Sep 2025 Issue date: 8 Dec 2020 | 10 Sep 2018 | 8 Dec 2020 |
| Utility: Method of treating diabetes type 2 by administering ultrarapid acting insulin Filling date: 26 Sep 2025 Issue date: 8 Dec 2020 | 2 Mar 2018 | 8 Dec 2020 |
| Utility: Use of ultrarapid acting insulin Filling date: 26 Sep 2025 Issue date: 15 Sep 2020 | 29 Jun 2018 | 15 Sep 2020 |
| Utility: Diketopiperazine microparticles with defined specific surface areas Filling date: 26 Sep 2025 Issue date: 15 Sep 2020 | 17 Mar 2017 | 15 Sep 2020 |
| Utility: Dry powder inhaler and system for drug delivery Filling date: 26 Sep 2025 Issue date: 25 Aug 2020 | 13 Apr 2016 | 25 Aug 2020 |
| Utility: Microcrystalline diketopiperazine compositions and methods Filling date: 26 Sep 2025 Issue date: 18 Aug 2020 | 6 Aug 2019 | 18 Aug 2020 |
| Utility: Dry powder drug delivery system and methods Filling date: 26 Sep 2025 Issue date: 18 Aug 2020 | 15 Sep 2017 | 18 Aug 2020 |
| Utility: Interactive apparatus and method for real-time profiling of inhalation efforts Filling date: 26 Sep 2025 Issue date: 9 Jun 2020 | 12 May 2016 | 9 Jun 2020 |
| Utility: Blister package for pharmaceutical cartridges Filling date: 26 Sep 2025 Issue date: 21 Apr 2020 | 3 Dec 2014 | 21 Apr 2020 |
| Utility: Powder dispensing and sensing apparatus and methods for simultaneous filling of cartridges Filling date: 26 Sep 2025 Issue date: 14 Apr 2020 | 13 Sep 2017 | 14 Apr 2020 |
| Utility: High capacity diketopiperazine microparticles and methods Filling date: 26 Sep 2025 Issue date: 31 Mar 2020 | 26 Jun 2019 | 31 Mar 2020 |
| Utility: Catalysis of diketopiperazine synthesis Filling date: 26 Sep 2025 Issue date: 31 Mar 2020 | 4 Oct 2018 | 31 Mar 2020 |
| Utility: Diketopiperazine salts for drug delivery and related methods Filling date: 26 Sep 2025 Issue date: 10 Mar 2020 | 4 Oct 2018 | 10 Mar 2020 |
| Utility: Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic alpha-N-protected amino ester intermediate Filling date: 26 Sep 2025 Issue date: 3 Mar 2020 | 16 Apr 2018 | 3 Mar 2020 |
| Utility: Mouthpiece cover for an inhaler Filling date: 26 Sep 2025 Issue date: 18 Feb 2020 | 1 Oct 2015 | 18 Feb 2020 |
| Utility: Apparatus and method for cryogranulating a pharmaceutical composition Filling date: 26 Sep 2025 Issue date: 10 Dec 2019 | 1 Aug 2018 | 10 Dec 2019 |
| Utility: Microcrystalline diketopiperazine compositions and methods Filling date: 26 Sep 2025 Issue date: 24 Sep 2019 | 14 Mar 2014 | 24 Sep 2019 |
| Utility: Heat-stable dry powder pharmaceutical compositions and methods Filling date: 26 Sep 2025 Issue date: 17 Sep 2019 | 31 Jan 2018 | 17 Sep 2019 |
| Utility: High capacity diketopiperazine microparticles and methods Filling date: 26 Sep 2025 Issue date: 13 Aug 2019 | 4 Oct 2018 | 13 Aug 2019 |
| Utility: Method for improving the pharmaceutic properties of microparticles comprising diketopiperazine and an active agent Filling date: 26 Sep 2025 Issue date: 13 Aug 2019 | 4 Oct 2018 | 13 Aug 2019 |
