IP Library Granted Patent US 12,329,164
Granted Patent B2
US 12,329,164 · App. 18/073,538 · Granted Jun 17, 2025

Repellant formulation and method

Inventors: Vadim Mitlitski (Demarest, NJ); Richard Robert Tenore (Narrowsburg, NY); Erica Rattigan Tyree (Amherst, VA)
Assignee: Insight Pharmaceuticals Corporation
A01N65/22A01N25/04A01N65/06A01N65/08A01N65/24A01N65/28A01N65/42A01N65/44
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Quick Facts
Patent No.
US 12,329,164
App. No.
18/073,538
Granted
Jun 17, 2025
Kind
B2
Abstract

A formulation for repelling insects and arthropods comprises about 0.5% by weight to about 4.0% by weight of an active ingredient and an emulsifier. The active ingredient includes a mixture of one or more natural essential oils. A method for making the repellant formulation comprises forming an oil-in-water emulsion by mixing one or more of the natural essential oils into an aqueous solution including an emulsifier, homogenizing the oil-in-water emulsion, and adding a buffer to the emulsion for maintaining a pH of the emulsion at above about 7.5. The repellant formulation is used by applying an effective amount of the repellant formulation onto the skin or fur of a mammal, clothing or other surface.

Claims (12)

1. A method for repelling insects and arthropods, the repelling method consisting essentially of the steps of:

providing an aqueous emulsion comprising

about 0.5% by weight to about 4.0% by weight of an active ingredient, the active ingredient including a mixture of one or more natural essential oils, and

an emulsifier comprising a mixture of two parts fatty acid soap and eight parts mono and di-glycerides, wherein the mixed emulsifier has a hydrophilic-lipophilic balance (HLB) between about 5 and about 7,

wherein fine droplets of the active ingredient are freely dispersed within the emulsifier forming the emulsion; and

applying an effective amount of the aqueous emulsion onto the skin or fur of a mammal, clothing or other surface.

2. The repelling method as recited in claim 1 , wherein the applying step comprises spraying the aqueous emulsion.

3. The repelling method as recited in claim 1 , wherein the applying step comprises topical application of the aqueous emulsion.

4. The repelling method as recited in claim 1 , wherein the applying step comprises dipping a surface into the aqueous emulsion.

5. The repelling method as recited in claim 1 , wherein the step of providing a repellant formulation comprises providing the emulsifier at a ratio of about 1:1 of emulsifier to active ingredient.

6. The repelling method as recited in claim 1 , wherein the fatty acid soap comprises potassium laurate.

7. The repelling method as recited in claim 1 , wherein the mono and di-glycerides comprise glyceryl monooleate.

Assignments (1)
SECURITY INTEREST Recorded Jul 24, 2026
From: MEDTECH PRODUCTS INC.; INSIGHT PHARMACEUTICALS CORPORATION; DENTEK ORAL CARE, INC.
To: CITIBANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 075392/0725 →
Continuity (3)
Continuation 17217967 · Mar 30, 2021
Provisional Application 63078059 · Sep 14, 2020
Related Publication 20230099513A1 · Mar 30, 2023
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