Published Technical Disclosure Archive

Advanced Aerosol Generation: Modular Cartridge Innovation

Publication ID: 24-11856992_0001_PTD
Published: October 27, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Aerosol Generation: Modular Cartridge Innovation,” Published Technical Disclosure No. 24-11856992_0001_PTD, Published October 27, 2025, available at https://archive.pr1or.art/24-11856992_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. 11,856,992.

Background and Problem Solved

The original patent, 'Aerosol-generating system, aerosol forming device and a cartridge therefor', disclosed a cartridge with a nicotine source and a lactic acid source. However, this design had limitations in terms of heat transfer, aerosol consistency, and maintenance. The present invention addresses these limitations by introducing a novel susceptor coil design, modular cartridge architecture, and advanced heating protocols.

Novelty and Inventive Step

The novel susceptor coil design, modular cartridge architecture, and advanced heating protocols introduced in the present invention provide a significant improvement over the original patent, offering enhanced aerosol formation, improved flavor profiles, and increased efficiency. These features are new and non-obvious compared to the original patent, demonstrating a clear inventive step.

Alternative Embodiments and Variations

Alternative embodiments of the invention could include variations of the susceptor coil design, such as a helical or zigzag pattern, or the use of different materials for the susceptor element. Additionally, the modular cartridge architecture could be adapted for use with different types of aerosol-forming substrates or flavor profiles.

Potential Commercial Applications and Market

The enhanced aerosol-generating system has significant commercial potential in the e-vapor industry, offering improved performance, efficiency, and customization options for consumers. The modular design and advanced heating protocols could also be applied to other industries, such as pharmaceuticals or cosmetics, where controlled aerosol generation is required.

CPC Classifications

SectionClassGroup
A A24 A24F40/465
A A24 A24F40/30
A A24 A24F40/42
A A61 A61M11/042
A A24 A24F40/10

Field of Art

Aerosol generation systems, specifically electronic nicotine delivery devices, requiring expertise in thermal engineering, materials science, and electronic device design with knowledge of heat transfer, substrate heating, and aerosol formation mechanisms

Person of Ordinary Skill (PHOSITA) Profile

A professional with a bachelor's or master's degree in engineering, materials science, or related field, with 3-5 years experience in electronic smoking device design, familiar with thermal control systems, substrate heating techniques, and aerosol generation principles

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent predictable engineering modifications to the source patent's core aerosol generation architecture. The disclosed susceptor coil design, modular cartridge structure, and heating protocols are logical extensions of existing technical approaches in electronic nicotine delivery systems. These variations demonstrate standard design optimization techniques that would be apparent to a skilled practitioner seeking incremental improvements in device performance and user experience.

Obvious Combinations & Variations

Source Patent Element
Cartridge with first and second cavities containing nicotine and lactic acid sources
PTD Variation
Modular cartridge design with interchangeable nicotine and lactic acid sources
Obviousness Reasoning
A PHOSITA would recognize that modular component design is a standard engineering approach for improving device flexibility and manufacturing efficiency, representing a predictable variation of existing cartridge architectures
Source Patent Element
Susceptor positioned between first and second cavities
PTD Variation
Novel spiral susceptor coil design enhancing heat transfer
Obviousness Reasoning
Geometric modifications to heat transfer elements are well-known design choices for optimizing thermal performance, and a PHOSITA would find spiral coil configurations an obvious method for improving heat distribution
Source Patent Element
Basic aerosol generation system with heating elements
PTD Variation
Integrated temperature sensor for real-time monitoring of aerosol generation parameters
Obviousness Reasoning
Adding sensor technologies for process monitoring is a standard engineering practice, representing an obvious improvement that a PHOSITA would readily conceive for enhancing device performance and user control
Source Patent Element
Uniform heating of nicotine and lactic acid sources
PTD Variation
Pulsed heating protocol for improved aerosol consistency
Obviousness Reasoning
Developing alternative heating strategies is a predictable engineering approach for optimizing aerosol generation, and a PHOSITA would recognize pulsed heating as a known technique for improving thermal efficiency
Source Patent Element
Fixed susceptor configuration
PTD Variation
Removable and replaceable susceptor element
Obviousness Reasoning
Designing components for easier maintenance and replacement is a standard design optimization technique that a PHOSITA would find obvious for improving device serviceability and manufacturing flexibility
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11856992, the present publication demonstrates that the claimed variations in aerosol generation system design represent obvious extensions of prior art, employing standard engineering techniques and predictable modifications that would be readily apparent to a person having ordinary skill in the art of electronic nicotine delivery systems. The disclosed technical variations fail to meet the non-obviousness requirements of 35 U.S.C. ยง 103, thereby establishing this publication as anticipatory prior art against potential future patent claims in this technical domain.

Original Patent Information

Patent NumberUS 11,856,992
TitleAerosol-generating system, aerosol forming device and a cartridge therefor
Assignee(s)Philip Morris Products S.A.