IP Library Granted Patent US 12,396,451
Granted Patent B2
US 12,396,451 · App. 18/376,335 · Granted Aug 26, 2025

Pest repellant system with compliant architecture

Inventors: John Smalley (Tucson, AZ); David Rogers (Tucson, AZ)
Assignee: Symterra , Inc.
A01M29/26
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,396,451
App. No.
18/376,335
Granted
Aug 26, 2025
Kind
B2
Abstract

The present disclosure provides a pest repellant system that includes pulse generator circuitry to generate pulses from a power source. The frequency and amplitude of the pulses are selected based on a selected pest species. One or more emitters are coupled to the pulse generator to generate pulsed fields to interfere with navigational/landing/nesting abilities of the selected pest species. The pulse generator circuitry includes filter circuitry to remove/attenuate unwanted frequency components of the pulses, in accordance with regulatory and/or government requirements. The pulse generator circuitry is encased in a housing structure to provide moisture and tamper resistance in accordance with regulatory and/or government requirements.

Claims (42)

1. A pest repellant system, comprising:

a water-resistant housing structure;

transformer circuitry, disposed within the water-resistant housing structure, to generate a step-up voltage output from voltage source;

pulse trigger circuitry, disposed within the water-resistant housing structure, to generate pulse signals having a selected frequency based on the voltage output of the transformer circuitry;

filter circuitry, disposed within the water-resistant housing structure, to filter signal components in the pulse signals; and

controller circuitry, disposed within the water-resistant housing structure, to control the transformer circuitry to generate the voltage output having a voltage level based on, at least in part, a selected species of pest; the controller circuitry also to control the pulse trigger circuitry to control the frequency of the pulse signals based on, at least in part, based on the selected species of pest.

2. The system of claim 1 , further comprising: an electromagnetic emitter to receive the plurality of pulses and to generate a pulsed electromagnetic signal having frequency based on the frequency of the plurality of pulses, wherein the frequency of the pulsed electromagnetic signal operates to repel the selected pest species.

3. The system of claim 1 , wherein the housing structure is a water-resistant housing structure in compliance with an IP65 or IP68 standard.

4. The system of claim 1 , wherein the filter circuitry being selected from a notch filter, a bandpass filer, or a low pass filter, and wherein the filter circuitry to attenuate frequency components in the pulses in compliance with a regulatory and/or governmental restriction on impermissible frequency components in the pulses.

5. The system of claim 1 , wherein the housing structure further includes radio frequency (RF) shielding disposed within the housing, the RF shielding to attenuate frequency components in the pulses in compliance with a regulatory and/or governmental restriction on impermissible frequency components in the pulses.

6. The system of claim 1 , wherein the housing structure further includes at least one connector to provide power input or output from the housing, the connector being a water-resistant connector in compliance with a regulatory and/or governmental requirements for water resistance.

7. A pest repellant system, comprising:

a water-resistant housing structure;

transformer circuitry, disposed within the water-resistant housing structure, to generate a step-up voltage output from voltage source;

pulse trigger circuitry, disposed within the water-resistant housing structure, to generate pulse signals having a selected frequency based on the voltage output of the transformer circuitry;

filter circuitry, disposed within the water-resistant housing structure, to filter signal components in the pulse signals;

controller circuitry, disposed within the water-resistant housing structure, to control the transformer circuitry to generate the voltage output having a voltage level based on, at least in part, a selected species of pest; the controller circuitry also to control the pulse trigger circuitry to control the frequency of the pulse signals based on, at least in part, based on the selected species of pest; and

an electromagnetic emitter to receive the plurality of pulses and to generate a pulsed electromagnetic signal having frequency based on the frequency of the plurality of pulses, wherein the frequency of the pulsed electromagnetic signal operates to repel the selected pest species.

8. The system of claim 7 , wherein the housing structure is a water-resistant housing structure in compliance with an IP65 or IP68 standard.

9. The system of claim 7 , wherein the filter circuitry being selected from a notch filter, a bandpass filer, or a low pass filter, and wherein the filter circuitry to attenuate frequency components in the pulses in compliance with a regulatory and/or governmental restriction on impermissible frequency components in the pulses.

10. The system of claim 7 , wherein the housing structure further includes radio frequency (RF) shielding disposed within the housing, the RF shielding to attenuate frequency components in the pulses in compliance with a regulatory and/or governmental restriction on impermissible frequency components in the pulses.

11. The system of claim 7 , wherein the housing structure further includes at least one connector to provide power input or output from the housing, the connector being a water-resistant connector in compliance with a regulatory and/or governmental requirements for water resistance.

12. The system of claim 7 , wherein the emitter comprising:

a body portion;

a metallic member disposed within the body portion; and

a loop of conducting wire disposed around, at least in part, the metallic member; wherein the loop of conducting wire being coupled to the pulses and wherein the pulses interact with the metallic member to generate the pulsed electromagnetic signal.

13. A pest repellant system, comprising:

a water-resistant housing structure;

transformer circuitry, disposed within the water-resistant housing structure, to generate a step-up voltage output from voltage source;

pulse trigger circuitry, disposed within the water-resistant housing structure, to generate pulse signals having a selected frequency based on the voltage output of the transformer circuitry;

filter circuitry, disposed within the water-resistant housing structure, to filter signal components in the pulse signals and generate filtered pulse signals;

controller circuitry, disposed within the water-resistant housing structure, to control the transformer circuitry to generate the voltage output having a voltage level based on, at least in part, a selected species of pest; the controller circuitry also to control the pulse trigger circuitry to control the frequency of the pulse signals based on, at least in part, based on the selected species of pest; and

an electromagnetic emitter to receive the plurality of pulses and to generate a pulsed electromagnetic signal having frequency based on the frequency of the plurality of pulses, wherein the frequency of the pulsed electromagnetic signal operates to repel the selected pest species; wherein the emitter comprising:

a body portion;

a metallic member disposed within the body portion; and

a loop of conducting wire disposed around, at least in part, the metallic member; wherein the loop of conducting wire being coupled to the pulses and wherein the pulses interact with the metallic member to generate the pulsed electromagnetic signal.

14. The system of claim 13 , wherein the housing structure is a water-resistant housing structure in compliance with an IP65 or IP68 standard.

15. The system of claim 13 , wherein the filter circuitry being selected from a notch filter, a bandpass filer, or a low pass filter, and wherein the filter circuitry to attenuate frequency components in the pulses in compliance with a regulatory and/or governmental restriction on impermissible frequency components in the pulses.

16. The system of claim 13 , wherein the housing structure further includes radio frequency (RF) shielding disposed within the housing, the RF shielding to attenuate frequency components in the pulses in compliance with a regulatory and/or governmental restriction on impermissible frequency components in the pulses.

17. The system of claim 13 , wherein the housing structure further includes at least one connector to provide power input or output from the housing, the connector being a water-resistant connector in compliance with a regulatory and/or governmental requirements for water resistance.

18. The system of claim 13 , further comprising a conductive wire coupled to the filtered pulsed signals and to the loop of conductive wire.

19. The system of claim 18 , wherein the conductive wire is an insulated cable.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 26, 2026
From: ROGERS, DAVID
To: SYMTERRA, INC.
Reel/Frame 074761/0407 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 26, 2026
From: SYMTERRA, INC.
To: BIRD-X, INC.
Reel/Frame 074761/0915 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 29, 2026
From: ROGERS, DAVID
To: SYMTERRA, INC.
Reel/Frame 074518/0889 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2025
From: SMALLEY, JOHN
To: SYMTERRA, INC.
Reel/Frame 071821/0365 →
Continuity (1)
Related Publication 20250107519A1 · Apr 3, 2025
References Cited (76)
US 2006265A · Davis · 1935 [cited by applicant]
US 2223813A · Brown · 1940 [cited by applicant]
US 2647228A · Just · 1953 [cited by applicant]
US 3699976A · Abe et al. · 1972 [cited by applicant]
US 4097838A · Fiala · 1978 [cited by applicant]
US 4366644A · Lawrence · 1983 [cited by applicant]
US 4370534A · Brandon · 1983 [cited by applicant]
US 4802057A · Patterson et al. · 1989 [cited by applicant]
US 4870779A · Johnson et al. · 1989 [cited by applicant]
US 4965552A · Price et al. · 1990 [cited by applicant]
US H998H · Gerharz · 1991 [cited by applicant]
US 5339564A · Wilson et al. · 1994 [cited by applicant]
US 5468938A · Roy · 1995 [cited by applicant]
US 5473836A · Liu · 1995 [cited by applicant]
US 5575106A · Martin et al. · 1996 [cited by applicant]
US 5774088A · Kreithen · 1998 [cited by applicant]
US 5832657A · Jan · 1998 [cited by examiner]
US 5896696A · Stokes · 1999 [cited by examiner]
US 5930946A · Mah · 1999 [cited by applicant]
US 5968401A · Roy · 1999 [cited by applicant]
US 6192622B1 · Haj-Yousef · 2001 [cited by applicant]
US 6249417B1 · Pippen · 2001 [cited by applicant]
US 6250255B1 · Lenhardt · 2001 [cited by examiner]
US 6996029B1 · Boyd et al. · 2006 [cited by applicant]
US 7106216B1 · Maher · 2006 [cited by applicant]
US 7240455B2 · Moore · 2007 [cited by applicant]
US 7324408B2 · Cilliers · 2008 [cited by applicant]
US 7698853B2 · Ragon et al. · 2010 [cited by applicant]
US 7707767B2 · Ragon et al. · 2010 [cited by applicant]
US 7712247B2 · Wijenberg et al. · 2010 [cited by applicant]
US 8111164B2 · Bryce · 2012 [cited by applicant]
US 8733015B2 · Lagunas-Solar et al. · 2014 [cited by applicant]
US 9185899B2 · Richter et al. · 2015 [cited by applicant]
US 9450301B2 · Cink · 2016 [cited by applicant]
US 9581165B2 · Babbitt et al. · 2017 [cited by applicant]
US 9629354B2 · Cohen · 2017 [cited by applicant]
US 9775334B2 · Dykstra · 2017 [cited by applicant]
US 9775337B2 · Duncan · 2017 [cited by examiner]
US 10188093B2 · Kumar et al. · 2019 [cited by applicant]
US 10212795B2 · Handelman et al. · 2019 [cited by applicant]
US 10694738B2 · Garcia · 2020 [cited by applicant]
US 10772317B2 · Venugopalsetty et al. · 2020 [cited by applicant]
US 10820587B2 · Stoll · 2020 [cited by applicant]
US 11116200B1 · Hodam · 2021 [cited by applicant]
US 11291198B2 · Carnell · 2022 [cited by examiner]
US 11672244B2 · Rose et al. · 2023 [cited by applicant]
US 11712035B2 · Hagen et al. · 2023 [cited by applicant]
US 11779007B2 · Crisp et al. · 2023 [cited by applicant]
US 11957121B2 · Tam · 2024 [cited by applicant]
US 20040200439A1 · Thomas et al. · 2004 [cited by applicant]
US 20050039379A1 · Pollinger · 2005 [cited by applicant]
US 20060024195A1 · Lagunas-Solar et al. · 2006 [cited by applicant]
US 20110023792A1 · Osypka · 2011 [cited by applicant]
US 20120091123A1 · Joines · 2012 [cited by applicant]
US 20120263021A1 · Connell · 2012 [cited by applicant]
US 20130305590A1 · Bessei et al. · 2013 [cited by applicant]
US 20140334268A1 · O'Hara · 2014 [cited by applicant]
US 20150084751A1 · Crawford · 2015 [cited by applicant]
US 20150150237A1 · Valls · 2015 [cited by applicant]
US 20170020122A1 · Mirzakhani Nafchi · 2017 [cited by applicant]
US 20180084774A1 · Stoll · 2018 [cited by examiner]
US 20180206532A1 · Kaczanowski · 2018 [cited by applicant]
US 20190008131A1 · Austin · 2019 [cited by examiner]
US 20190313630A1 · Stoll · 2019 [cited by applicant]
US 20200068866A1 · Taylor · 2020 [cited by applicant]
US 20210022332A1 · Chong · 2021 [cited by applicant]
US 20210029983A1 · Deering · 2021 [cited by examiner]
US 20210259236A1 · Garcia et al. · 2021 [cited by applicant]
US 20220369620A1 · Mangler · 2022 [cited by applicant]
US 20230232811A1 · Einat · 2023 [cited by applicant]
US 20230240281A1 · De Samber · 2023 [cited by examiner]
US 20230309548A1 · Moraes et al. · 2023 [cited by applicant]
EP 2880976A1 · 2015 [cited by applicant]
WO 2019222822A1 · 2019 [cited by applicant]
WO 2022241005A1 · 2022 [cited by applicant]
European Search Report and Written Opinion from corresponding Appln. No. EP23201441.5, dated Mar. 5, 2024. 8 pages. [cited by applicant]