Applying Stereolithography to Novel Industries

Publication ID: 24-11857385_0007_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Applying Stereolithography to Novel Industries,” Published Technical Disclosure No. 24-11857385_0007_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857385_0007_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. 11,857,385.

Summary of the Inventive Concept

The inventive concept leverages the core technology of stereolithography-based plate denture production to create novel applications in various industries, including jewelry, prosthetics, hearing aids, footwear, and veterinary medicine.

Background and Problem Solved

The original patent disclosed a method for producing plate dentures using stereolithography. However, the potential of stereolithography extends far beyond dentistry. This inventive concept addresses the limitation of the original patent by exploring new applications and use cases for stereolithography in diverse industries.

Detailed Description of the Inventive Concept

The inventive concept involves adapting the stereolithography technology to produce customized products in various fields. For instance, Claim 1 discloses a system for producing customized jewelry using a stereolithography 3D printer, a curable composition, and a jewelry production kit. Similarly, Claims 2-5 describe methods and systems for creating personalized prosthetic limbs, customized hearing aids, customized footwear, and customized implants for veterinary medicine, respectively. Each application utilizes the core technology of stereolithography, with modifications to the curable composition, polymerization initiators, and production kits to suit the specific industry's requirements.

Novelty and Inventive Step

The inventive concept's novelty lies in its application of stereolithography to novel industries, which is non-obvious compared to the original patent's focus on dentistry. The inventive step involves identifying the potential of stereolithography in these new fields and developing the necessary modifications to the technology to make it suitable for each industry.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include using different types of 3D printers, varying the curable composition's properties, or incorporating additional features such as sensors or actuators into the produced products. Variations could also involve adapting the technology for use in other industries, such as aerospace or automotive.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in various industries, including jewelry, prosthetics, hearing aids, footwear, and veterinary medicine. The ability to produce customized products using stereolithography could revolutionize these industries, offering improved fit, comfort, and performance. The target market includes companies and organizations operating in these industries, as well as individuals seeking customized products.

CPC Classifications

SectionClassGroup
A A61 A61C13/0013
A A61 A61C13/01
A A61 A61C13/10
B B29 B29C64/124
B B33 B33Y10/00
B B33 B33Y80/00
C C09 C09J7/10
C C09 C09J7/30
C C09 C09J2301/416
C C09 C09J2433/00
C C09 C09J2433/008

Field of Art

Additive Manufacturing and Materials Science, specifically stereolithography 3D printing technologies for customized medical and consumer products, involving expertise in photopolymerization, material chemistry, and precision manufacturing techniques

Person of Ordinary Skill (PHOSITA) Profile

A professional with a bachelor's or master's degree in materials engineering, mechanical engineering, or chemical engineering, with 3-5 years experience in 3D printing technologies, familiar with photopolymerization techniques, material formulation, and cross-industry manufacturing adaptations

Obviousness Rationale

A PHOSITA would recognize that the core stereolithography technology disclosed in US 11857385 for dental applications represents a generalizable manufacturing approach with broad potential for customized product fabrication. The fundamental principles of stereolithography - precise 3D printing using photocurable compositions and specialized initiators - are directly transferable across different product domains. The variations in the PTD represent predictable extensions of the source patent's core technological framework, involving routine material and process modifications to suit specific industry requirements.

Obvious Combinations & Variations

Source Patent Element
Stereolithography method using curable composition with specific polymerization initiators for producing dental plates
PTD Variation
Applying identical stereolithography technique to produce customized jewelry using photocurable composition
Obviousness Reasoning
Known technique of adapting 3D printing processes across similar manufacturing domains, with predictable results achievable through routine material selection and process parameter adjustments
Source Patent Element
Use of radical and photopolymerization initiators with different excitation wavelengths
PTD Variation
Modifying initiator compositions for prosthetic limb and hearing aid production
Obviousness Reasoning
Predictable variation involving known material science principles of selecting appropriate polymerization initiators based on specific product requirements
Source Patent Element
Stereolithographic production of dental structures with precise geometric configurations
PTD Variation
Creating customized footwear and veterinary medical implants using identical 3D printing methodology
Obviousness Reasoning
Obvious extension of manufacturing technique across biomechanical and medical product domains, representing a standard design choice for precision manufacturing technologies
Source Patent Element
Curable composition including specific monomers and initiators for producing dental structures
PTD Variation
Incorporating fillers and reducing compounds to modify material properties for different product applications
Obviousness Reasoning
Routine materials engineering practice of adjusting composition to achieve desired mechanical and functional characteristics
Source Patent Element
Production kit for stereolithographic dental plate manufacturing
PTD Variation
Developing specialized production kits for jewelry, prosthetics, and hearing aids with similar structural principles
Obviousness Reasoning
Predictable product development strategy involving known techniques of technology transfer and industry-specific customization
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857385 and the published technical disclosure, a person having ordinary skill in the art would find the claimed variations in stereolithographic manufacturing across multiple industries to be obvious and non-patentable, as the core technological principles represent a straightforward and predictable extension of existing additive manufacturing methodologies.

Original Patent Information

Patent NumberUS 11,857,385
TitleMethod of producing plate denture, curable composition for stereolithography, and plate denture production kit
Assignee(s)TOKUYAMA DENTAL CORPORATION