99 patents currently held
64 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.
24 more records may belong here and await a decision; they are not counted.
The next term ends in Apr 2029. from the record
Of the 64 now held by other companies, 46 name EMC IP Holding Company LLC as their current owner, and 18 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
10
Ending by 2030
Apr 2029
Next term end
87
Patent families
When these terms end
Held patents by the year their term ends
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
Ends Jun 2031 · High confidence
Also notable
Ends May 2034 · High confidence
Also notable
Ends Aug 2030 · High confidence
Agile Otp Generation
US 8,312,519
Cited by 254 later US patents, top 5% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
Security-Aware Split-Server Passcode Verification for One-Time Authentication Tokens
US 9,432,360
Cited by 48 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 2034.
Secure Seed Provisioning
US 8,060,750
Renewed at every maintenance window since the 2011 grant; no more fees are due before its term ends in 2030.
Formerly held, still cited
Notable
Ends Nov 2029 · High confidence
The most cited patent in this portfolio, cited by 766 later US patents, top 1% of utility patents granted in 2014 in our data. Protection runs to 2029.
now held by EMC IP Holding Company LLC
Also notable
Ends Sep 2027 · High confidence
Cited by 270 later US patents, top 5% of utility patents granted in 2009 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2027.
now held by EMC IP Holding Company LLC
Also notable
Ends Dec 2027 · High confidence
Cited by 133 later US patents, top 5% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2027. A terminal disclaimer caps this term to an earlier patent's.
now held by Netwitness Security LLC
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.
- 2 fees due Jan 7 to 14, 2027 · next Jan 7
- 1 fee due Jun 17, 2027The maintenance fee for Protecting Key Material Using White-Box Cryptography and Split Key Techniques (US 10,511,436) comes due Jun 17, 2027. Unpaid by Dec 17, 2027, it lapses early.
- 1 fee due Jul 5, 2027The maintenance fee for Multi-Server Authentication Using Proactivization Journaling (US 9,230,075) comes due Jul 5, 2027. Unpaid by Jan 5, 2028, it lapses early.
- 1 fee due Aug 23, 2027The maintenance fee for Configurable One-Time Authentication Tokens with Improved Resilience to Attacks (US 9,270,655) comes due Aug 23, 2027. Unpaid by Feb 23, 2028, it lapses early.
- 1 fee due Sep 22, 2027The maintenance fee for Server Methods and Apparatus for Processing Passcodes Generated by Configurable One-Time Authentication Tokens (US 9,294,473) comes due Sep 22, 2027. Unpaid by Mar 22, 2028, it lapses early.
- 4 fees due Oct 5 to 26, 2027 · next Oct 5
- 1 fee due Nov 3, 2027The maintenance fee for Distributing Access and Identification Tokens in a Mobile Environment (US 9,332,433) comes due Nov 3, 2027. Unpaid by May 3, 2028, it lapses early.
Recent changes
- Nov 12Assignment recorded on 6 patents: Rsa Security LLC to Outseer LLC Recorded Nov 12, 2026, executed Nov 10, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76724, frame 802.
- 3 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 87 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Multi-Server Passcode Verification for One-Time Authentication Tokens with Auxiliary Channel Compatibility | 5 in force | to Sep 2036 |
| Agile Otp Generation | 5 in force | to Jun 2031 |
| Interpretable Supervised Anomaly Detection for Determining Reasons for Unsupervised Anomaly Decision | 2 in force | to Jan 2043 |
| Recovery Mechanism for Fault-Tolerant Split-Server Passcode Verification of One-Time Authentication Tokens | 2 in force | to Nov 2034 |
| Configurable One-Time Authentication Tokens with Improved Resilience to Attacks | 2 in force | to Jun 2033 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,739,733 | Storing Digital Secrets in a Vault In force · High confidence | In force | High confidence | |
| US 7,831,837 | Encoding Token Commands/Data Within Data Streams for Standard Interfaces In force · High confidence | In force | High confidence | |
| US 7,810,147 | Detecting and Preventing Replay in Authentication Systems In force · High confidence | In force | High confidence | |
| US 7,921,311 | Method and Apparatus for Mitigating Current Drain in a Low-Power Hand-Held Device In force · High confidence | In force | High confidence | |
| US 8,060,750 | Secure Seed Provisioning In force · High confidence | In force | High confidence | |
| US 8,059,814 | Techniques for Carrying Out Seed or Key Derivation In force · High confidence | In force | High confidence | |
| US 8,566,916 | Agile Otp Generation In force · High confidence | In force | High confidence | |
| US 8,850,538 | Agile Otp Generation In force · Medium confidence | In force | Medium confidence | |
| US 9,306,942 | Agile Otp Generation In force · Medium confidence | In force | Medium confidence | |
| US 9,118,663 | Agile Otp Generation In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 99: 64 patents in force now held by others · 51 patents ended · 4 applications pending · 21 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.