Seven patents currently held, every record listed here
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Oct 2035. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Oct 2035
Next term end
2
Patent families
When these terms end
Each bar runs from grant to computed term end. 2020 to 2043.
US 10,579,337
Method, Software and Apparatus for Computing Discrete Logarithms Modulo A Prime
Oct 19, 2035
20252030203520402043
2 pending applications: term is not computable until grant.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
Only 2 of the currently held patents qualify as notable.
Notable
Ends Jun 2041 · Medium confidence
Also notable
Ends Oct 2035 · High confidence
Systems, Methods, and Apparatuses for Disinfection and Decontamination
US 11,533,914
A family of 9 related applications built on the 2022 grant. Protection runs to 2041.
Method, Software and Apparatus for Computing Discrete Logarithms Modulo A Prime
US 10,579,337
Granted 2020. Computed term ends 2035.
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 Sep 3, 2027The maintenance fee for Method, Software and Apparatus for Computing Discrete Logarithms Modulo A Prime (US 10,579,337) comes due Sep 3, 2027. Unpaid by Mar 3, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
Grouped by real patent family, largest first, labeled by the earliest filing in each. No technology classification is inferred from titles.
| Systems, Methods, and Apparatuses for Disinfection and Decontamination | 6 in force | to Feb 2043 |
| Method, Software and Apparatus for Computing Discrete Logarithms Modulo A Prime | 1 in force | to Oct 2035 |
Patents held now
Soonest term end first.
Showing 1 to 7 of 7
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,579,337 | Method, Software and Apparatus for Computing Discrete Logarithms Modulo A Prime held by Chorus Call, Inc. In force · High confidence | In force | High confidence | |
| US 11,533,914 | Systems, Methods, and Apparatuses for Disinfection and Decontamination In force · Medium confidence | In force | Medium confidence | |
| US 12,010,997 | Systems, Methods, and Apparatuses for Disinfection and Decontamination In force · High confidence | In force | High confidence | |
| US 12,010,998 | Systems, Methods, and Apparatuses for Disinfection and Decontamination In force · Low confidence | In force | Low confidence | |
| US 12,588,679 | Systems, Methods, and Apparatuses for Disinfection and Decontamination In force · Medium confidence | In force | Medium confidence | |
| US 12,575,572 | Systems, Methods, and Apparatuses for Disinfection and Decontamination In force · Medium confidence | In force | Medium confidence | |
| US 12,653,193 | Systems, Methods, and Apparatuses for Disinfection and Decontamination In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 7: 2 applications pending. 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.
5 computed term dates come from a chain with an unresolved parent. A continuity parent has not yet been fetched from USPTO's records. The term is dated from this application's own claim; no earlier date is assumed until the parent is resolved.