Enhanced High Penetration Prodrug Compositions for Pulmonary Condition Treatment

Publication ID: 24-11857545_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced High Penetration Prodrug Compositions for Pulmonary Condition Treatment,” Published Technical Disclosure No. 24-11857545_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857545_0001_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,545.

Summary of the Inventive Concept

The present invention provides improved high penetration prodrug compositions and methods for treating pulmonary conditions, addressing the limitations of existing formulations by enhancing efficacy, safety, and delivery.

Background and Problem Solved

The original patent disclosed high penetration prodrug compositions for treating pulmonary conditions. However, these compositions had limitations, including variable efficacy, potential side effects, and limited delivery options. The present inventive concept addresses these limitations by introducing novel methods and compositions that improve the treatment of pulmonary conditions.

Detailed Description of the Inventive Concept

The new claims introduce several enhancements to the original patent. Claim 1 proposes a method for treating pulmonary conditions using a high penetration prodrug composition administered via a nebulizer, increasing efficacy and reducing side effects. Claim 2 introduces a pharmaceutical composition comprising a high penetration prodrug and a mucoadhesive agent, enhancing retention time in the lungs. Claim 3 presents a system for monitoring the delivery of a high penetration prodrug composition to the lungs, comprising a sensor and a feedback loop to optimize dosage. Claim 4 discloses a high penetration prodrug composition with a functional unit having a lipophilic moiety and a transportational unit having a hydrophilic moiety, improving efficiency in crossing biological barriers. Claim 5 proposes a method for screening new drug candidates using a high penetration prodrug composition, identifying candidates with improved efficacy and safety profiles.

Novelty and Inventive Step

The new claims introduce novel and non-obvious improvements to the original patent, including the use of nebulizers, mucoadhesive agents, and monitoring systems. These enhancements provide a significant inventive step over the original patent, offering improved efficacy, safety, and delivery options.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different types of nebulizers, varying mucoadhesive agents, or alternative monitoring systems. Additionally, the high penetration prodrug composition could be adapted for use in other biological systems or diseases.

Potential Commercial Applications and Market

The enhanced high penetration prodrug compositions and methods have significant commercial potential in the pharmaceutical industry, particularly in the treatment of pulmonary conditions such as asthma and respiratory tract infections. The market for these compositions is substantial, with an estimated global value of over $10 billion.

Field of Art

Pharmaceutical formulations for pulmonary drug delivery, specifically focused on prodrug compositions with enhanced biological barrier penetration and targeted respiratory treatment

Person of Ordinary Skill (PHOSITA) Profile

A pharmaceutical scientist with expertise in drug formulation, organic chemistry, and pulmonary drug delivery systems, holding at least a PhD or equivalent industrial experience in pharmaceutical research

Obviousness Rationale

A person skilled in the art would recognize that the published technical disclosure represents predictable variations and logical extensions of the source patent's core prodrug composition technology. The proposed modifications leverage known pharmaceutical engineering techniques to incrementally improve drug delivery and efficacy. These variations represent standard problem-solving approaches within pharmaceutical research, applying known methodological improvements to an existing prodrug delivery platform.

Obvious Combinations & Variations

Source Patent Element
Topical pharmaceutical formulation for pulmonary conditions with specific molecular structures
PTD Variation
Introducing nebulizer administration method to enhance drug delivery efficiency
Obviousness Reasoning
Nebulizer delivery is a well-established technique for pulmonary drug administration, representing a predictable optimization of the original formulation's delivery mechanism
Source Patent Element
High penetration prodrug compositions targeting respiratory conditions
PTD Variation
Adding mucoadhesive agents to improve lung retention time
Obviousness Reasoning
Mucoadhesive technology is a known pharmaceutical strategy for extending drug residence time, representing an obvious enhancement to existing prodrug formulations
Source Patent Element
Pharmaceutical compositions with specific molecular structures
PTD Variation
Incorporating lipophilic and hydrophilic moiety design to improve biological barrier crossing
Obviousness Reasoning
Modular drug design using complementary molecular units is a standard approach in pharmaceutical engineering for improving drug penetration and bioavailability
Source Patent Element
Pharmaceutical compositions for pulmonary condition treatment
PTD Variation
Developing a sensor-based monitoring system for drug delivery optimization
Obviousness Reasoning
Feedback-controlled drug delivery systems are a known technological approach for personalizing and improving pharmaceutical interventions
Source Patent Element
Pharmaceutical screening methods for respiratory drug candidates
PTD Variation
Enhanced screening methodology using high penetration prodrug compositions
Obviousness Reasoning
Iterative improvement of drug screening techniques represents a standard scientific approach to pharmaceutical research and development
35 U.S.C. § 103 Summary: Based on a comprehensive analysis of US Patent 11857545 and the corresponding published technical disclosure, a person having ordinary skill in the art would find the claimed variations obvious and non-patentable. The proposed modifications represent predictable engineering solutions that would be readily conceived by a skilled pharmaceutical researcher, utilizing known techniques to incrementally improve existing prodrug composition technologies for pulmonary drug delivery.

Original Patent Information

Patent NumberUS 11,857,545
TitleHigh penetration prodrug compositions and pharmaceutical composition thereof for treatment of pulmonary conditions
Assignee(s)Techfields Pharma Co., Ltd.