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.
1 more record may belong here and awaits a decision; it is not counted.
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 Proofpoint Inc. 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 2035.
US 10,447,634
Apparatus and Method for Augmenting a Message to Facilitate Spam Identification
Apr 30, 2033
US 9,634,970
Apparatus and Method for Augmenting a Message to Facilitate Spam Identification
Jan 20, 2034
US 9,294,490
Apparatus and Method for Identifying a Domain Name System Resource Exhaustion Attack
Oct 7, 2034
US 9,729,413
Apparatus and Method for Identifying Domain Name System Tunneling, Exfiltration and Infiltration
Aug 28, 2035
20172022202720322035
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 Aug 2035 · High confidence
The most cited patent in this portfolio, cited by 40 later US patents, top 10% of utility patents granted in 2017 in our data. Protection runs to 2035.
now held by Proofpoint, Inc.
Also notable
Ends Oct 2034 · High confidence
Cited by 30 later US patents, top 25% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2034.
now held by Proofpoint, Inc.
Also notable
Ends Jan 2034 · High confidence
Granted 2017 and renewed at every maintenance window due so far. Protection runs to 2034.
now held by Proofpoint, Inc.
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 · 5 patents ended · 6 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.