56 patents currently held

39 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.

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

The next term ends in Mar 2027. from the record

Of the 39 now held by other companies, 16 name Cryptography Research Inc. as their current owner, and 23 more name another party. Each row says which.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Mar 2027

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027 2028 2029 2030 2031 2032 2033 203420352036 203720382039204020412042204320442045

notable patents fee due within 90 days 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. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.

Notable patents

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

Notable

Method and Device for Modulating an Active Load with Damping of Auto Oscillation US 9,331,748

Cited by 38 later US patents, top 10% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.

Ends Aug 2032 · High confidence Also notable

Systems and Methods for Securing Content Delivered Using a Playlist US 9,532,113

Cited by 57 later US patents, top 10% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.

Ends Jun 2032 · High confidence Also notable

Method for Playing Digital Contents Protected with a DRM (Digital Right Management) Scheme and Corresponding System US 8,813,246

Cited by 33 later US patents, top 25% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2032.

Ends Apr 2032 · Medium 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 Nov 28, 2026
The maintenance fee for Method and Device for Modulating an Active Load (US 10,305,546) comes due Nov 28, 2026. Unpaid by May 28, 2027, it lapses early.
1 fee due Mar 1, 2027
The maintenance fee for Method for Securing a Transaction Performed with a Programmable Portable Device (US 9,122,868) comes due Mar 1, 2027. Unpaid by Sep 1, 2027, it lapses early.
1 fee due Apr 22, 2027
The maintenance fee for Securing Communication in a Playback Device with a Control Module Using a Key Contribution (US 10,454,671) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
1 fee due Jun 29, 2027
The maintenance fee for Systems and Methods for Performing Semantic Analysis of Media Objects (US 9,226,047) comes due Jun 29, 2027. Unpaid by Dec 29, 2027, it lapses early.
2 fees due Jul 5 to 12, 2027 · next Jul 5
5 fees due Aug 2 to 23, 2027 · next Aug 2
1 fee due Nov 3, 2027
The maintenance fee for Method and Device for Modulating an Active Load with Damping of Auto Oscillation (US 9,331,748) comes due Nov 3, 2027. Unpaid by May 3, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Oct 14Assignment recorded on US 12,450,042: Verimatrix S.A. to Guardsquare N.V. Recorded Oct 14, 2026, executed Jun 3, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76365, frame 558.
2 terms have ended since Aug 16, 2026

What they patent

The 5 largest of its 45 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Method and Device for Modulating an Active Load with Damping of Auto Oscillation	4 in force	to Aug 2032
System and Method for Synchronized Key Derivation across Multiple Conditional Access Servers	2 in force	to Dec 2034
Method and Device for Transmitting Data by Inductive Coupling with Controlled Self-Oscillation	2 in force	to Sep 2034
Method for Securing a Transaction Performed with a Programmable Portable Device	2 in force	to Oct 2032
Systems and Methods for Securing Content Delivered Using a Playlist	2 in force	to Jun 2032

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 8,127,346	Network Security System and Method In force Term ends Mar 31, 2027 · High confidence	In force	Term ends Mar 31, 2027	High confidence
US 8,582,763	Method and Apparatus for Decoding Broadband Data held by Verimatrix GmbH In force Term ends Jun 11, 2028 · High confidence	In force	Term ends Jun 11, 2028	High confidence
US 7,905,419	Method for Routing Outgoing and Incoming Data in an NFC Chipset In force Term ends Sep 7, 2028 · Medium confidence	In force	Term ends Sep 7, 2028	Medium confidence
US 9,268,949	System and Method for Defining Programmable Processing Steps Applied When Protecting the Data In force Term ends Sep 20, 2028 · High confidence	In force	Term ends Sep 20, 2028	High confidence
US 7,954,723	Method for Routing Incoming and Outgoing Data in an NFC Chipset In force Term ends Nov 9, 2028 · High confidence	In force	Term ends Nov 9, 2028	High confidence
US 8,191,098	Multi-Source Bridge Content Distribution System and Method In force Term ends Nov 20, 2028 · High confidence	In force	Term ends Nov 20, 2028	High confidence
US 8,037,506	Movie Studio-Based Network Distribution System and Method In force Term ends Dec 14, 2028 · High confidence	In force	Term ends Dec 14, 2028	High confidence
US 7,665,664	Inductive Coupling Reader Comprising Means for Extracting a Power Supply Voltage In force Term ends Dec 23, 2028 · High confidence	In force	Term ends Dec 23, 2028	High confidence
US 8,995,711	Efficient Watermarking Approaches of Compressed Media In force Term ends Jul 6, 2029 · High confidence	In force	Term ends Jul 6, 2029	High confidence
US 8,181,262	Network User Authentication System and Method In force Term ends Oct 27, 2029 · High confidence	In force	Term ends Oct 27, 2029	High confidence

10 of 56 patents shown.

Pro members see all 56.

Pro members: see all 56 patents

Also on record, not counted in the 56: 39 patents in force now held by others · 88 patents ended · 2 applications pending · 20 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.

Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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