Multimodal Chromatography for Specialized Environments

Publication ID: 24-11857619_0004_PTD
Published: October 28, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Multimodal Chromatography for Specialized Environments,” Published Technical Disclosure No. 24-11857619_0004_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857619_0004_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. 11,857,619.

Summary of the Inventive Concept

An innovative multimodal chromatography method for purifying HIV-1 envelope glycoprotein tailored for high-security biodefense, disaster relief, extreme weather conditions, and other niche applications.

Background and Problem Solved

The original patent disclosed a multimodal chromatography method for purifying HIV-1 envelope glycoprotein. However, this method had limitations in its adaptability to specific, narrow market or unique operational environments. The present inventive concept addresses these limitations by providing specialized variations and niche solutions for high-security biodefense, disaster relief, extreme weather conditions, and other applications.

Detailed Description of the Inventive Concept

The inventive concept comprises a family of multimodal chromatography methods and systems tailored for specific environments and applications. For high-security biodefense, the method involves capturing the HIV-1 envelope glycoprotein on a multimodal resin under controlled atmospheric conditions and eluting the captured glycoprotein with a sterile, decontaminated elution buffer. For disaster relief, a portable, self-contained multimodal chromatography unit is used, powered by a source adapted for extreme weather conditions. In extreme cold-weather environments, the method involves capturing the HIV-1 envelope glycoprotein on a multimodal resin at a temperature below -20°C and eluting the captured glycoprotein with a cryoprotectant-containing elution buffer. In high-altitude, low-oxygen environments, the method involves capturing the HIV-1 envelope glycoprotein on a multimodal resin in a pressurized, oxygen-enriched chamber and eluting the captured glycoprotein with an oxygen-rich elution buffer. Finally, in high-containment, biosafety level 4 laboratories, the system comprises a multimodal chromatography unit enclosed in a hermetically sealed, negatively pressurized chamber, and a robotic arm for automated, contact-free sample handling.

Novelty and Inventive Step

The inventive concept's novelty lies in its adaptation of the original multimodal chromatography method to specific, narrow market or unique operational environments. The inventive step resides in the identification of the need for specialized variations and niche solutions and the provision of tailored methods and systems to address these needs.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different multimodal resins, elution buffers, or operating conditions tailored to specific environments or applications. Additionally, the inventive concept could be implemented using different types of chromatography, such as affinity or ion-exchange chromatography.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the biotechnology and pharmaceutical industries, particularly in the development of vaccines and therapeutics for infectious diseases. The target markets include high-security biodefense, disaster relief, and extreme weather conditions, as well as high-containment, biosafety level 4 laboratories.

CPC Classifications

SectionClassGroup
A A61 A61K39/21
C C07 C07K1/18
C C07 C07K14/005
C C07 C07K14/162
C C12 C12N7/02
A A61 A61K2039/53
C C12 C12N2740/16051
C C12 C12N2740/16111
C C12 C12N2740/16122
C C12 C12N2740/16134

Field of Art

Biotechnology and protein purification, specifically focused on HIV envelope glycoprotein isolation techniques, requiring advanced knowledge of chromatography, molecular biology, and protein engineering

Person of Ordinary Skill (PHOSITA) Profile

A PhD-level researcher with expertise in protein purification techniques, multimodal chromatography, virology, and experience with specialized protein isolation methods for challenging biological samples

Obviousness Rationale

A PHOSITA would recognize that the source patent's multimodal chromatography method for HIV-1 gp140 protein provides a foundational technique that can be readily adapted to specialized environmental conditions. The PTD's variations represent predictable extensions of the core chromatography method, applying known engineering principles to modify capture and elution parameters for specific operational contexts. These modifications would be considered routine optimization within the skill set of an experienced protein purification specialist.

Obvious Combinations & Variations

Source Patent Element
Multimodal resin-based capture of HIV-1 gp140 protein
PTD Variation
Capturing protein in controlled atmospheric conditions or pressurized chambers
Obviousness Reasoning
Modifying capture environment is a predictable design choice for adapting chromatography to specialized settings, representing routine engineering problem-solving
Source Patent Element
Basic elution process for HIV-1 envelope glycoprotein
PTD Variation
Using specialized elution buffers with cryoprotectants or oxygen-enriched compositions
Obviousness Reasoning
Buffer composition modifications are standard practice in protein purification, with predictable techniques for maintaining protein stability in extreme conditions
Source Patent Element
Standard multimodal chromatography system
PTD Variation
Portable, self-contained units for disaster relief or high-containment laboratory environments
Obviousness Reasoning
Adapting laboratory equipment for field or specialized use is a common engineering approach, representing an obvious solution to operational constraints
Source Patent Element
HIV-1 envelope glycoprotein purification method
PTD Variation
Temperature-modified capture processes (e.g., below -20°C) with specialized handling techniques
Obviousness Reasoning
Temperature adaptation is a known technique in protein purification, with established protocols for maintaining protein integrity under extreme conditions
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. § 103, the variations disclosed in the Published Technical Disclosure would have been obvious to a Person Having Ordinary Skill In The Art at the time of invention, based on the teachings of US Patent 11857619. The PTD represents a predictable application of known multimodal chromatography techniques to specialized environmental contexts, demonstrating that the claimed variations would have been within the ordinary capabilities of a skilled practitioner in protein purification technologies.

Original Patent Information

Patent NumberUS 11,857,619
TitleMultimodal chromatography method for the purification of HIV-1 envelope glycoprotein
Assignee(s)Janssen Vaccines & Prevention B.V.