Adaptive Lung-Like Epithelium Generation Systems for Specialized Environments

Publication ID: 24-11857697_0009_PTD
Published: October 28, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Adaptive Lung-Like Epithelium Generation Systems for Specialized Environments,” Published Technical Disclosure No. 24-11857697_0009_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857697_0009_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. 11,857,697.

Summary of the Inventive Concept

This inventive concept adapts the original 3-dimensional lung-like epithelium generation method for specific, narrow market applications, including disaster relief, high-security needs, extreme weather conditions, and remote or underserved areas.

Background and Problem Solved

The original patent disclosed methods for growing 3-dimensional lung-like epithelium in vitro. However, these methods were limited to general laboratory settings. This inventive concept addresses the need for adapting the original method to accommodate specific operational environments, ensuring the generated lung-like epithelium is suitable for transplantation in diverse settings.

Detailed Description of the Inventive Concept

The inventive concept comprises a system or method for generating 3-dimensional lung-like epithelium using pluripotent stem cells, adapted for specific environments. In the disaster relief setting, the system includes a lung-like epithelium generation module configured for rapid deployment. For high-altitude environments, the method involves culturing cells to differentiate into lung-like epithelium adapted for low-oxygen conditions. In extreme weather conditions, a portable device with a sealed chamber maintains a controlled environment for differentiation. In high-security laboratory settings, a secure bioreactor prevents unauthorized access or contamination. For remote or underserved areas, the method generates lung-like epithelium suitable for transplantation in these settings.

Novelty and Inventive Step

The new claims introduce novel adaptations of the original method, specifically designed for unique operational environments. The inventive step lies in the tailored approaches to generate lung-like epithelium suitable for transplantation in these specialized settings.

Alternative Embodiments and Variations

Alternative embodiments may include modifications to the bioreactor design, cell culturing protocols, or epithelium differentiation techniques to accommodate different environmental conditions. Variations may also involve integrating the inventive concept with existing medical devices or systems.

Potential Commercial Applications and Market

The adaptive lung-like epithelium generation systems have significant commercial potential in the fields of disaster relief, high-security biotechnology, and remote or underserved healthcare. The target market includes government agencies, biotechnology companies, and medical organizations operating in these specialized environments.

CPC Classifications

SectionClassGroup
A A61 A61L27/3895
A A61 A61K35/42
A A61 A61L27/3804
A A61 A61L27/3813
A A61 A61L27/3834
A A61 A61L27/3839
A A61 A61L27/3869
C C12 C12N5/0018
C C12 C12N5/0062
C C12 C12N5/0606
C C12 C12N5/0607
C C12 C12N5/0688
C C12 C12N5/0689
A A61 A61L2430/22
C C12 C12N2501/113
C C12 C12N2501/115
C C12 C12N2501/117
C C12 C12N2501/119
C C12 C12N2501/155
C C12 C12N2501/385
C C12 C12N2501/415
C C12 C12N2501/999
C C12 C12N2506/02
C C12 C12N2506/03
C C12 C12N2506/27
C C12 C12N2506/45
C C12 C12N2513/00

Field of Art

Regenerative medicine, stem cell biology, tissue engineering, with specific focus on lung epithelial cell differentiation and 3D tissue generation

Person of Ordinary Skill (PHOSITA) Profile

A biomedical researcher with advanced training in stem cell techniques, cell differentiation protocols, and tissue engineering, possessing expertise in pluripotent stem cell manipulation, signaling pathway activation, and in vitro tissue generation

Obviousness Rationale

A person skilled in the art would recognize that adapting the source patent's lung-like epithelium generation method to specific environmental contexts represents a straightforward extension of the existing technical teachings. The fundamental cell culturing and differentiation techniques remain consistent, with variations primarily involving contextual modifications to the bioreactor design, environmental controls, and deployment strategies. These adaptations would be considered predictable variations within the established technological framework of stem cell tissue generation.

Obvious Combinations & Variations

Source Patent Element
Culturing NKX2.1+ ventral-anterior foregut spheroid tissue derived from pluripotent stem cells for approximately forty days
PTD Variation
Modifying cell culturing protocol to accommodate high-altitude or extreme weather conditions through controlled environmental parameters
Obviousness Reasoning
A PHOSITA would recognize that adjusting environmental conditions during cell culture is a routine optimization technique, with predictable results in maintaining cell viability and differentiation potential
Source Patent Element
Activating Wnt and FGF signaling pathways using small molecules like CHIR99021 and specific FGF variants
PTD Variation
Integrating specialized bioreactor designs for secure or remote deployment of lung-like epithelium generation systems
Obviousness Reasoning
Adapting existing cell differentiation protocols to different physical containment systems represents a standard engineering design choice with predictable technical outcomes
Source Patent Element
Generating 3-dimensional lung-like epithelium from pluripotent stem cells
PTD Variation
Tailoring lung-like epithelium generation for specific application contexts like disaster relief or high-security laboratory settings
Obviousness Reasoning
Modifying tissue generation protocols for specific use cases is a standard approach in biomedical engineering, representing an obvious variation based on known techniques
Source Patent Element
Deriving cells from definitive endoderm cells originating from embryonic or induced pluripotent stem cells
PTD Variation
Creating portable devices with sealed chambers for maintaining controlled cell differentiation environments
Obviousness Reasoning
Implementing environmental control mechanisms for cell culture is a well-established technique with predictable results in maintaining cellular differentiation processes
Source Patent Element
Method of treating mammalian subjects with damaged lung tissue
PTD Variation
Extending treatment protocols to specific environmental contexts like remote or underserved areas
Obviousness Reasoning
Expanding medical treatment methodologies to address diverse geographical and infrastructural challenges represents a standard approach in translational medical research
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857697 and the disclosed variations, a person having ordinary skill in the art would find the claimed innovations obvious and lacking inventive step. The published technical disclosure demonstrates that the proposed lung-like epithelium generation methods represent predictable variations of existing stem cell differentiation techniques, thereby rendering subsequent claims of novelty invalid under 35 U.S.C. Section 103 obviousness standards.

Original Patent Information

Patent NumberUS 11,857,697
TitleCompositions and methods for obtaining 3-dimensional lung-like epithelium and related uses thereof
Assignee(s)THE REGENTS OF THE UNIVERSITY OF MICHIGAN