# US 9,750,706 B2 · Electrostatically charged nasal application method and product for micro-filtration

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,750,706 B2
- Document ID: US9750706B2
- Status: Granted
- Kind: B2
- Application number: 15/458,952
- Filed: 2017-03-14
- Published: 2017-06-29
- Granted: 2017-09-05
- Earliest claimed: 2016-12-23
- Assignees: Trutek Corp.
- Applicants: TRUTEK Corp.
- Inventors: Ashok Wahi; John Lawrence Dequina; Kanika Wahi; Bernard Foss
- Web page: https://patentgrep.com/patent/US9750706B2

## CPC

- A61K 31/14: Quaternary ammonium compounds, e.g. edrophonium, choline (betaines A61K31/205)
- A61K 9/0009: {involving or responsive to electricity, magnetism or acoustic waves; Galenical aspects of sonophoresis, iontophoresis, electroporation or electroosmosis}
- A61K 9/0014: {Skin, i.e. galenical aspects of topical compositions (non-active ingredients are additionally classified in A61K47/00; A61K9/0009, A61K9/0021, A61K9/7015, A61K9/7023 take precedence; cosmetic preparations A61K8/00, A61Q; preparations for wound dressings or bandages A61L26/00)}
- A61K 9/0043: {Nose}
- A61K 9/7007: {Drug-containing films, membranes or sheets (A61K9/0041, A61K9/0043, A61K9/006, A61K9/0063 take precedence)}
- A62B 23/06: Nose filters
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A62B: DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING (valves specially adapted for medical use A61M39/00; life-saving devices, apparatus or methods specially adapted for use in water B63C9/00; divers' equipment B63C11/00; specially adopted for use with aircraft, e.g. parachutes, ejector seats, {B64D17/00, B64D25/10}; rescue devices peculiar to mining E21F11/00)

## Abstract

A method of microfiltration of inhaled air for nasal application and product for reducing the risk of inhalation of fine and ultra-fine (i.e., microscopic and submicroscopic) sized atmospheric pollutants by applying a formulation topically to the skin above the upper-lip and in close proximity of the nasal passages. The products of this formulation, when applied, create an electrostatic field for reducing the inhalation of fine and ultra-fine airborne pollutants.

## Claims

### Claim 1

A method for electrostatically inhibiting fine and ultra-fine particulate matter from being inhaled into a person's nasal passages, wherein the person has a face of skin upon which the nasal passages are located, said method comprising:
a) applying a thin film of a formulation to the skin in a vicinity of the nasal passages,
wherein said formulation comprises a chloride based quaternary long-chain polymer, and wherein said long-chain polymer possesses a positive electrostatic charge,
wherein the cohesion of the formulation is adjusted to provide adequate impermeability to the thin film; and
wherein the adhesion of the thin film is adjusted to permit said thin film to stick to the skin;
b) electrostatically attracting a first group of fine and ultra-fine particulate matter to the thin film,
wherein the fine and ultra-fine particulate matter of the first group have a negative electrostatic charge,
and holding the fine and ultra-fine particulate matter of the first group in place; and
c) electrostatically repelling a second group of fine and ultra-fine particulate matter from the thin film,
wherein said fine and ultra-fine particulate matter of the second group have a positive electrostatic charge.

### Claim 2 (depends on 1)

The method of claim 1 wherein the chloride based quaternary long-chain polymer is Behentrimonium Chloride.

### Claim 3 (depends on 2)

The method of claim 2 wherein the formulation further comprises additional quaternary ammonium compounds.

### Claim 4 (depends on 2)

The method of claim 2 wherein the formulation further comprises Benzyl-C12-16-alkyldimethyl, Chlorides.

### Claim 5 (depends on 2)

The method of claim 2 wherein said vicinity of the nasal passages extends partially or completely to the person's face.