17 patents currently held

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

3 more records may belong here and await a decision; they are not counted.

The next term ends in May 2027. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

May 2027

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027 2028 20292030203120322033 2034 2035 2036 203720382039204020412042204320442045

notable patents all others 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: the highest-ranked patents in this portfolio by citations and family size.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank

Notable

Control of PLMN Messaging Services in IP Domains US 7,701,969

The most cited patent in this portfolio, cited by 126 later US patents, top 5% of utility patents granted in 2010 in our data. Protection runs to 2027.

Ends Jun 2027 · High confidence Also notable

Relating to Messaging Gateways US 10,277,552

Cited by 10 later US patents, top 25% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2036.

Ends Feb 2036 · High confidence Also notable

Message Flooding Prevention in Messaging Networks US 9,338,179

Granted 2016 and renewed at every maintenance window due so far. Protection runs to 2033.

Ends Feb 2033 · High confidence

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

1 fee due Apr 13, 2027
The maintenance fee for Messaging System and Method (US 9,160,569) comes due Apr 13, 2027. Unpaid by Oct 13, 2027, it lapses early.
1 fee due Aug 16, 2027
The maintenance fee for Method, Apparatus and Computer Readable Medium for Terminating and Newly Constructing a Send Routing Information (SRI) Message in Mobile Networks (US 9,264,883) comes due Aug 16, 2027. Unpaid by Feb 16, 2028, it lapses early.
1 fee due Sep 10, 2027
The maintenance fee for Group Messaging (US 10,587,540) comes due Sep 10, 2027. Unpaid by Mar 10, 2028, it lapses early.
2 fees due Nov 10, 2027

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

What they patent

The 5 largest of its 16 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Message Flooding Prevention in Messaging Networks	2 in force	to Feb 2033
Group Messaging	1 in force	to Jan 2037
Relating to Messaging Gateways	1 in force	to Feb 2036
Network Signaling Interface and Method with Enhanced Traffic Management During Signaling Storms	1 in force	to Jun 2035
SMS Fraud Detection	1 in force	to May 2034

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 7,725,552	Content and Service Delivery in Telecommunication Networks In force Term ends May 21, 2027 · High confidence	In force	Term ends May 21, 2027	High confidence
US 7,701,969	Control of PLMN Messaging Services in IP Domains In force Term ends Jun 22, 2027 · High confidence	In force	Term ends Jun 22, 2027	High confidence
US 7,881,735	Messaging Gateway and Method In force Term ends May 12, 2028 · High confidence	In force	Term ends May 12, 2028	High confidence
US 8,195,755	Message Delivery in Mobile Networks In force Term ends Jan 12, 2029 · High confidence	In force	Term ends Jan 12, 2029	High confidence
US 8,196,202	Mobile Network Security System In force Term ends Jul 20, 2029 · High confidence	In force	Term ends Jul 20, 2029	High confidence
US 7,860,488	Device Detection in Mobile Networks In force Term ends Oct 27, 2029 · High confidence	In force	Term ends Oct 27, 2029	High confidence
US 9,160,569	Messaging System and Method In force Term ends Jan 12, 2033 · High confidence	In force	Term ends Jan 12, 2033	High confidence
US 9,338,618	A Home Routing System and Method for Mobile Networks In force Term ends Feb 6, 2033 · High confidence	In force	Term ends Feb 6, 2033	High confidence
US 9,264,883	Method, Apparatus and Computer Readable Medium for Terminating and Newly Constructing a Send Routing Information (SRI) Message in Mobile Networks In force Term ends Feb 20, 2033 · High confidence	In force	Term ends Feb 20, 2033	High confidence
US 9,338,179	Message Flooding Prevention in Messaging Networks In force Term ends Feb 20, 2033 · High confidence	In force	Term ends Feb 20, 2033	High confidence

10 of 17 patents shown.

Pro members see all 17.

Pro members: see all 17 patents

Also on record, not counted in the 17: 6 patents ended · 23 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.

Export every term end as CSV · Pro

Markport Limited