0 patents currently held, every record listed here
8 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 8 US patents in force on its record. from the record
Of the 8 now held by other companies, 5 name Pulselink Systems LLC as their current owner, and 3 more name another party. Each row says which.
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. 2011 to 2032.
US 7,933,985
System and Method for Detecting and Preventing Denial of Service Attacks in a Communications System
Dec 19, 2028
US 8,185,947
System, Method and Apparatus for Securely Exchanging Security Keys and Monitoring Links in a IP Communications Network
May 2, 2030
US 8,503,657
System, Method and Apparatus for Authenticating and Protecting an IP User-End Device
Jul 24, 2030
US 9,531,873
System, method and apparatus for classifying communications in a communications system
Apr 24, 2031
US 8,582,567
System and method for providing network level and nodal level vulnerability protection in VoIP networks
Jul 23, 2031
US 8,705,720
System, Method and Apparatus for Clientless Two Factor Authentication in VoIP Networks
May 24, 2032
201520192023202720312032
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 Jul 2031 · High confidence
The most cited patent in this portfolio, cited by 513 later US patents, top 1% of utility patents granted in 2013 in our data. Protection runs to 2031.
now held by Pulselink Systems LLC
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
- 1 term has ended since Aug 16, 2026
Patents held now
Soonest term end first.
Also on record: 8 patents in force now held by others · 4 patents ended · 1 application 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.