Cryptography Research, Inc.

210 patents currently held · Updated Nov 14, 2026

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

Recorded under 4 name spellings.

Ending by 2030

Jan 2027

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

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.

3 fees due Nov 23 to 30, 2026 · next Nov 23
3 fees due Dec 4 to 25, 2026 · next Dec 4
4 fees due Jan 2 to 18, 2027 · next Jan 2
5 fees due Feb 13 to 28, 2027 · next Feb 13
5 fees due Mar 12 to 26, 2027 · next Mar 12
8 fees due Apr 3 to 29, 2027 · next Apr 3
5 fees due May 5 to 26, 2027 · next May 5
2 fees due Jun 10 to 30, 2027 · next Jun 10
7 fees due Jul 2 to 23, 2027 · next Jul 2
4 fees due Aug 6 to 27, 2027 · next Aug 6
6 fees due Sep 3 to 29, 2027 · next Sep 3
2 fees due Oct 9 to 16, 2027 · next Oct 9

Which patents, and when each one lapses · Pro

Recent changes

2 of the patents on this record were granted since Aug 16, 2026

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Patent	Title	Status	Expires	Confidence
US 7,809,133	Randomized Modular Reduction Method and Hardware Therefor In force Ends no later than Jan 4, 2027 · Medium confidence	In force	Ends no later than Jan 4, 2027	Medium confidence
US 7,644,322	Hardware Flow Control Monitor In force Term ends Jan 24, 2028 · High confidence	In force	Term ends Jan 24, 2028	High confidence
US 10,467,014	Configurable Pipeline Based on Error Detection Mode in a Data Processing System In force Term ends Apr 30, 2028 · High confidence	In force	Term ends Apr 30, 2028	High confidence
US 7,805,480	Randomized Modular Polynomial Reduction Method and Hardware Therefor In force Ends no later than Oct 29, 2028 · Medium confidence	In force	Ends no later than Oct 29, 2028	Medium confidence
US 8,301,905	System and Method for Encrypting Data In force Term ends Nov 22, 2029 · High confidence	In force	Term ends Nov 22, 2029	High confidence
US 8,006,045	Dummy Write Operations In force Term ends Jan 30, 2030 · High confidence	In force	Term ends Jan 30, 2030	High confidence
US 8,619,977	Representation Change of a Point on an Elliptic Curve In force Ends no later than May 8, 2030 · Medium confidence	In force	Ends no later than May 8, 2030	Medium confidence
US 8,301,890	Software Execution Randomization In force Term ends May 27, 2030 · High confidence	In force	Term ends May 27, 2030	High confidence
US 8,572,406	Integrated Circuit Protected Against Horizontal Side Channel Analysis In force Term ends Nov 30, 2030 · High confidence	In force	Term ends Nov 30, 2030	High confidence
US 8,707,052	Cryptographic device with resistance to differential power analysis and other external monitoring attacks In force Ends no later than Dec 2, 2030 · From the USPTO record	In force	Ends no later than Dec 2, 2030	From the USPTO record

10 of 210 patents shown.

Pro members see all 210.

Pro members: see all 210 patents

Also on record, not counted in the 210: 11 lapsed for an unpaid fee · 29 ended at full term. List them

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

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

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Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

17 pending · 4 no status recorded

List them