57 patents currently held
5 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.
The next term ends in Aug 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
20
Ending by 2030
Aug 2027
Next term end
44
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 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 no later than Sep 2027 · Low confidence
Also notable
Ends May 2032 · Medium confidence
Also notable
Ends Apr 2032 · Medium confidence
Use of Minimal Propagation Delay Path to Optimize a Mesh Network
US 8,848,571
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 2027. A terminal disclaimer is on file and its reference is not resolved, so no cap is applied and the date may move earlier, never later.
Efficient Device Handover/Migration in Mesh Networks
US 9,591,525
Cited by 31 later US patents, top 25% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.
Automatic Network Topology Detection and Fraud Detection
US 9,924,242
Cited by 26 later US patents, top 25% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.
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 Dec 4 to 18, 2026 · next Dec 4
- 1 fee due Jan 18, 2027The maintenance fee for Networked Utility Services and Vehicle Charging Stations (US 11,704,749) comes due Jan 18, 2027. Unpaid by Jul 19, 2027, it lapses early.
- 2 fees due Feb 6 to 8, 2027 · next Feb 6
- 2 fees due Mar 8 to 12, 2027 · next Mar 8
- 1 fee due May 24, 2027The maintenance fee for Multiple Protocol Receiver (US 9,197,467) comes due May 24, 2027. Unpaid by Nov 24, 2027, it lapses early.
- 1 fee due Jul 16, 2027The maintenance fee for Reliable Link Quality Estimation in Multi-Rate Networks (US 11,876,619) comes due Jul 16, 2027. Unpaid by Jan 18, 2028, it lapses early.
- 1 fee due Aug 18, 2027The maintenance fee for Efficient Device Handover/Migration in Mesh Networks (US 10,567,997) comes due Aug 18, 2027. Unpaid by Feb 18, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
The 5 largest of its 44 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Use of Minimal Propagation Delay Path to Optimize a Mesh Network | 3 in force | to Jul 2028 |
| Reliable Link Quality Estimation in Multi-Rate Networks | 2 in force | to Feb 2040 |
| Transducer Enclosure with Variable Moisture Proofing | 2 in force | to Jan 2040 |
| Multi-media multi-modulation and multi-data rate mesh network | 2 in force | to Apr 2033 |
| Efficient Device Handover/Migration in Mesh Networks | 2 in force | to Aug 2032 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,299,778 | Hall Sensor with Temperature Drift Control In force · Medium confidence | In force | Medium confidence | |
| US 8,787,210 | Firmware Download with Adaptive Lost Packet Recovery In force · Medium confidence | In force | Medium confidence | |
| US 8,848,571 | Use of Minimal Propagation Delay Path to Optimize a Mesh Network In force · Low confidence | In force | Low confidence | |
| US 8,441,987 | Beacon Requests and RS Bit Resolving Circular Routes In force · Medium confidence | In force | Medium confidence | |
| US 8,442,029 | Traffic Load Control in a Mesh Network In force · Medium confidence | In force | Medium confidence | |
| US 7,764,714 | Crystal Drift Compensation in a Mesh Network In force · High confidence | In force | High confidence | |
| US 7,756,078 | Cell Size Management In force · High confidence | In force | High confidence | |
| US 7,756,030 | Downlink Routing Mechanism In force · High confidence | In force | High confidence | |
| US 7,843,834 | Use of Minimal Propagation Delay Path to Optimize a Mesh Network In force · High confidence | In force | High confidence | |
| US 8,907,812 | Uplink Routing Without Routing Table In force · Low confidence | In force | Low confidence |
Also on record, not counted in the 57: 5 patents in force now held by others · 11 patents ended · 2 applications pending · 3 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.