Carkner; R. William

Patent Applications and Registrations

Patent applications and USPTO patent grants for Carkner; R. William.The latest application filed is for "method and apparatus for providing virtual private network services over public switched telephone network".

Company Profile

0.9.0

Carkner; R. William - Kanata CA

*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
Method and apparatus for providing virtual private network services over public switched telephone network Grant 6,453,035 - Psarras , et al. September 17, 2	2002-09-17
Number portability using enhanced routing table Grant 6,097,801 - Williams , et al. August 1, 2	2000-08-01
Number portability with database query Grant 6,047,055 - Carkner , et al. April 4, 2	2000-04-04
Number portability using enhanced routing table Grant 6,002,757 - Williams , et al. December 14, 1	1999-12-14
Number portability using ISUP message option Grant 5,915,009 - Williams , et al. June 22, 1	1999-06-22
Method and apparatus for routing a call to a number corresponding to a virtual public dial plan or to an existing dial plan Grant 5,768,358 - Venier , et al. June 16, 1	1998-06-16
Number portability using ISUP message option Grant 5,610,977 - Williams , et al. March 11, 1	1997-03-11
Number portability using database query Grant 5,602,909 - Carkner , et al. February 11, 1	1997-02-11
Method and apparatus for routing a call to a number corresponding to a virtual public dial plan or to an existing dial plan Grant 5,583,926 - Venier , et al. December 10, 1	1996-12-10

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.