0 patents currently held, every record listed here
7 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
This portfolio holds none of the 7 US patents in force on its record. from the record
Of the 7 now held by other companies, 7 name Ciena Corporation as their current owner. Each row says so.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
none
Next term end
When these terms end
Each bar runs from grant to computed term end. 2012 to 2033.
US 8,274,901
System and Method for Assisting in Troubleshooting a Network Handling Voice Over Internet Protocol Traffic
Aug 4, 2027
US 8,422,502
System and Method for Identifying VPN Traffic Paths and Linking VPN Traffic and Paths to VPN Customers of a Provider
Feb 14, 2029
US 8,824,331
System and Method for Identifying an Ingress Router of a Flow When No IP Address Is Associated with the Interface from Which the Flow Was Received
Mar 2, 2029
US 8,135,834
Method and System for Causing Intra-As Network Traffic to Be More Evenly Balanced
Jan 2, 2030
US 9,026,674
System and method for accurately displaying communications traffic information
Nov 9, 2030
US 8,751,624
System and Method for Identifying Issues Related to Messages in a Communication Network
Jun 26, 2031
US 8,937,946
System and Method for Identifying Tunnel Information Without Frequently Polling All Routers for All Tunnel Information
Jan 16, 2033
201620202024202820322033
Every computed term in this portfolio is shown above.Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
None of the currently held patents qualifies as notable.
Formerly held, still cited
Notable
Ends Nov 2030 · High confidence
The most cited patent in this portfolio, cited by 24 later US patents, top 25% of utility patents granted in 2015 in our data. Protection runs to 2030.
now held by Ciena Corporation
Also notable
Ends Feb 2029 · High confidence
The most cited patent in this portfolio, cited by 24 later US patents, top 25% of utility patents granted in 2013 in our data. Protection runs to 2029.
now held by Ciena Corporation
Also notable
Ends Mar 2029 · High confidence
Renewed at every maintenance window since the 2014 grant; no more fees are due before its term ends in 2029.
now held by Ciena Corporation
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
Patents held now
Soonest term end first.
Also on record: 7 patents in force now held by others · 14 patents ended · 5 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
1 terminal disclaimer is on file with no resolved reference. No cap is applied and none is guessed