PQShield Ltd

10 patents currently held · Updated Nov 14, 2026

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

Ending by 2030

Nov 2040

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.

1 fee due May 21, 2027
The maintenance fee for Cryptography using a cryptographic state (US 11,822,901) comes due May 21, 2027. Unpaid by Nov 22, 2027, it lapses early.

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Recent changes

1 of the patents on this record was 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.

Showing 1 to 10 of 10

Patent	Title	Status	Expires	Confidence
US 12,474,891	Cryptographic architecture for cryptographic permutation In force Term ends Nov 21, 2040 · From the USPTO record	In force	Term ends Nov 21, 2040	From the USPTO record
US 11,822,901	Cryptography using a cryptographic state In force Term ends Dec 7, 2040 · From the USPTO record	In force	Term ends Dec 7, 2040	From the USPTO record
US 11,635,952	Secure Update Propagation with Digital Signatures In force Term ends May 18, 2041 · High confidence	In force	Term ends May 18, 2041	High confidence
US 12,021,852	Methods of generating a key and a communication method In force Term ends Jul 9, 2041 · From the USPTO record	In force	Term ends Jul 9, 2041	From the USPTO record
US 12,229,323	Co-processor for cryptographic operations In force Term ends Jul 29, 2041 · From the USPTO record	In force	Term ends Jul 29, 2041	From the USPTO record
US 12,445,416	Methods and Systems for Compressed Encryption In force Term ends Mar 25, 2042 · High confidence	In force	Term ends Mar 25, 2042	High confidence
US 12,445,418	Affine masking for secure encryption schemes In force Term ends Apr 5, 2042 · From the USPTO record	In force	Term ends Apr 5, 2042	From the USPTO record
US 12,712,726	Methods and Systems for Updatable Encryption In force Term ends Jul 14, 2042 · High confidence	In force	Term ends Jul 14, 2042	High confidence
US 12,470,376	Cryptographic system for post-quantum cryptographic operations In force Term ends Aug 1, 2042 · From the USPTO record	In force	Term ends Aug 1, 2042	From the USPTO record
US 12,634,136	Sharing Cryptographic Material In force Term ends Dec 27, 2042 · High confidence	In force	Term ends Dec 27, 2042	High confidence

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.

8 pending · 1 no status recorded

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