Silanated Glass Flakes for Non-Dental Applications

Publication ID: 24-11857650_0007_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Silanated Glass Flakes for Non-Dental Applications,” Published Technical Disclosure No. 24-11857650_0007_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857650_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. 11,857,650.

Summary of the Inventive Concept

The inventive concept applies the core technology of silanated glass flakes to various non-dental industries, including cosmetics, pharmaceuticals, and wound care, providing improved texture, elasticity, strength, and healing properties.

Background and Problem Solved

The original patent focused on dental compositions with silanated glass flakes for improved esthetic appearance and gloss retention. However, the unique properties of silanated glass flakes can be leveraged in other fields, where current solutions lack the desired performance. This inventive concept addresses the need for innovative materials in these industries.

Detailed Description of the Inventive Concept

The inventive concept involves the use of silanated glass flakes with an average thickness between 50 nm and 1000 nm in various non-dental applications. In cosmetics, the silanated glass flakes can be incorporated into topical compositions for improved skin texture and appearance. In pharmaceuticals, they can be used as a carrier for therapeutic agents to treat bone disorders, promoting improved bone density and strength. In wound care, the silanated glass flakes can be integrated into biocompatible matrices to enhance wound healing. The silanated glass flakes provide a unique combination of properties, including improved strength, elasticity, and texture, making them an ideal material for these applications.

Novelty and Inventive Step

The new claims introduce a novel application of silanated glass flakes in non-dental industries, which is not obvious from the original patent. The inventive step lies in recognizing the potential of silanated glass flakes to solve specific problems in these industries and developing new compositions and methods that leverage their unique properties.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of silanated glass flakes in other cosmetic products, such as hair care or makeup, or in pharmaceutical applications for treating other diseases or disorders. Variations of the inventive concept could also involve the development of new methods for silanating glass flakes or creating composite materials with silanated glass flakes and other components.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the cosmetics, pharmaceuticals, and wound care industries, where there is a growing demand for innovative materials with improved performance. The target market includes companies developing topical compositions, pharmaceutical products, and wound dressing materials, as well as researchers and clinicians seeking new solutions for various health and beauty applications.

CPC Classifications

SectionClassGroup
A A61 A61K6/77
A A61 A61K6/17
A A61 A61K6/61
A A61 A61K6/62
A A61 A61K6/802
A A61 A61K6/816
A A61 A61K6/887
C C03 C03C3/087
C C03 C03C3/093
C C08 C08L33/10

Field of Art

Materials science and biomedical engineering, focusing on composite materials with specialized glass flake compositions, particularly in dental, cosmetic, pharmaceutical, and wound care applications

Person of Ordinary Skill (PHOSITA) Profile

A materials scientist or biomedical engineer with expertise in composite materials, surface modification techniques, and interdisciplinary material applications, holding advanced degrees and practical experience in material characterization and functional design

Obviousness Rationale

A PHOSITA would recognize that the unique properties of silanated glass flakes disclosed in the source patent - specifically their nanoscale thickness, surface modification, and structural characteristics - are inherently transferable across multiple material applications. The fundamental material science principles underlying the dental composition are directly applicable to cosmetic, pharmaceutical, and wound care technologies. The systematic approach of incorporating silanated glass flakes with specific dimensional and compositional parameters represents a predictable extension of the original patent's core technological innovation.

Obvious Combinations & Variations

Source Patent Element
Silanated glass flakes with average thickness between 50-1000 nm and specific oxide composition
PTD Variation
Application of identical silanated glass flakes in cosmetic skin treatments and hair care products
Obviousness Reasoning
Known surface modification techniques and material transferability make cross-industry application a predictable design choice with expected performance improvements
Source Patent Element
Structural filler combined with silanated glass flakes in dental composition
PTD Variation
Incorporation of structural filler and silanated glass flakes in wound dressing and bone treatment matrices
Obviousness Reasoning
Finite set of potential material reinforcement strategies and known biomedical material design principles support obvious combination of known elements
Source Patent Element
Silane treatment method for enhancing material properties
PTD Variation
Extending silane treatment to create improved carrier systems for pharmaceutical agents
Obviousness Reasoning
Well-established surface modification technique with predictable results across different material systems, representing standard engineering problem-solving approach
Source Patent Element
Glass flake milling and silanation process described in source patent claims
PTD Variation
Adapting identical processing techniques for creating silanated glass flakes in non-dental applications
Obviousness Reasoning
Manufacturing process is universally applicable, with material processing steps representing known technique transferable across technological domains
35 U.S.C. § 103 Summary: Based on US Patent 11857650's comprehensive disclosure of silanated glass flake compositions and processing methods, a person of ordinary skill in the art would find the variations presented in this published technical disclosure to be obvious extensions of the prior art. The systematic application of nanoscale silanated glass flakes across multiple technological domains represents a predictable innovation utilizing known material science principles, thereby rendering potential claims to such variations unpatentable under standard obviousness analysis.

Original Patent Information

Patent NumberUS 11,857,650
TitleDental composition comprising a dental filler containing a structural filler and silanated glass flakes
Assignee(s)Dentsply Sirona Inc.