The ownership for one was transferred to Venture Banking Corp. in 2003. In addition, that patent expired back in 2018 (over a year ago).
Application US09/191,935 events:
1997-11-21 - Priority to US6673397P 1998-11-13 - Application filed by TeleChem International Inc 1998-11-13 - Priority to US09/191,935 1999-11-01 - Assigned to TELECHEM INTERNATIONAL INC. 2000-08-15 - Application granted 2000-08-15 - Publication of US6101946A 2003-12-09 - Assigned to VENTURE BANKING GROUP 2018-11-13 - Anticipated expiration 2018-12-31 - Application status is Expired - Lifetime
The other patent has expired back in March (due to fees not being paid) and is about to expire for its lifetime in about 7 months:
Application US09/613,006 events:
2000-07-10 - Application filed by TeleChem International Inc 2000-07-10 - Priority to US09/613,006 2000-07-10 - Assigned to TELECHEM INTERNATIONAL INC. 2005-07-05 - Application granted 2005-07-05 - Publication of US6913879B1 2019-03-31 - Application status is Expired - Fee Related 2020-07-11 - Adjusted expiration