Yarnall, Sr.; Robert G.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Yarnall, Sr.; Robert G..The latest application filed is for "external battery arrangement for electronic containment systems".

Company Profile

0.12.0

Yarnall, Sr.; Robert G. - Kimberton PA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
External battery arrangement for electronic containment systems Grant 6,230,661 - Yarnall, Jr. , et al. May 15, 2	2001-05-15
Switched capacitor power supply for an electronic animal containment system Grant 6,201,477 - Yarnall, Jr. , et al. March 13, 2	2001-03-13
External deterrent arrangement for electronic containment systems Grant 6,147,610 - Yarnall, Jr. , et al. November 14, 2	2000-11-14
Electronic confinement system for animals or people transmitting digitally encoded signals Grant 5,844,489 - Yarnall, Jr. , et al. December 1, 1	1998-12-01
Electronic confinement system for animals or people transmitting digitally encoded signals Grant 5,808,551 - Yarnall, Jr. , et al. September 15, 1	1998-09-15
Electronic confinement system for animals using modulated radio waves Grant 5,781,113 - Yarnall, Sr. , et al. July 14, 1	1998-07-14
Method and apparatus for confining animals and/or humans using spread spectrum signals Grant 5,769,032 - Yarnall, Sr. , et al. June 23, 1	1998-06-23
Electronic confinement system for animals using modulated radio waves Grant 5,610,588 - Yarnall, Jr. , et al. March 11, 1	1997-03-11
Electronic confinement system for animals using modulated radio waves Grant 5,565,850 - Yarnall, Jr. , et al. October 15, 1	1996-10-15
Confinement arrangement for animals Grant 5,170,149 - Yarnall, Sr. , et al. December 8, 1	1992-12-08
Electronic confinement and communications arrangement for animals Grant 4,745,882 - Yarnall, Sr. , et al. May 24, 1	1988-05-24
Electronic confinement arrangement for animals Grant 4,733,633 - Yarnall, Sr. , et al. March 29, 1	1988-03-29

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