34 patents currently held

57 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 Jan 2028. from the record

Of the 57 now held by other companies, 30 name Trapeze Networks Inc. as their current owner, and 27 more name another party. Each row says which.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Jan 2028

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

202620272028 202920302031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042204320442045

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

Network Security Appliance US 8,042,147

The most cited patent in this portfolio, cited by 182 later US patents, top 5% of utility patents granted in 2011 in our data. Protection runs to 2029.

Ends Oct 2029 · High confidence Also notable

High Performance Data Communications Cable US 9,697,929

The largest patent family in this portfolio, 5 related applications, renewed at every maintenance window due so far. Protection runs to 2034.

Ends Oct 2034 · High confidence Also notable

Systems and Methods for Obtaining Available Channels for Fast Channel Switching US 9,622,161

Granted 2017 and renewed at every maintenance window due so far. Protection runs to 2035.

Ends Oct 2035 · High confidence

Formerly held, still cited

Notable

Ap-Local Dynamic Switching US 9,258,702

Cited by 39 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 2029.

now held by Juniper Networks, Inc.

Ends May 2029 · High confidence

Also notable

System and Method for Wireless Network Monitoring US 7,724,703

Cited by 97 later US patents, top 10% of utility patents granted in 2010 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.

now held by Trapeze Networks, Inc.

Ends Feb 2028 · High confidence

Also notable

Universal coaxial cable compression tool US 8,464,422

Cited by 27 later US patents, top 25% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2027.

now held by PPC Broadband, Inc.

Ends Dec 2027 · High confidence

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 Dec 20, 2026
The maintenance fee for Hybrid High Frequency Separator with Parametric Control Ratios of Conductive Components (US 11,682,501) comes due Dec 20, 2026. Unpaid by Jun 21, 2027, it lapses early.
1 fee due Feb 4, 2027
The maintenance fee for Flat Type Cable for High Frequency Applications (US 9,099,220) comes due Feb 4, 2027. Unpaid by Aug 4, 2027, it lapses early.
1 fee due Apr 27, 2027
The maintenance fee for Cabinet and Hinge Assembly (US 9,169,679) comes due Apr 27, 2027. Unpaid by Oct 27, 2027, it lapses early.
2 fees due May 24 to 26, 2027 · next May 24
1 fee due Jul 30, 2027
The maintenance fee for Method and Protection Apparatus to Prevent Malicious Information Communication in IP Networks by Exploiting Benign Networking Protocols (US 11,888,865) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.
1 fee due Sep 22, 2027
The maintenance fee for Semi-Solid Balanced Audio Cable (US 9,293,239) comes due Sep 22, 2027. Unpaid by Mar 22, 2028, it lapses early.
1 fee due Oct 9, 2027
The maintenance fee for Hybrid High Frequency Separator with Parametric Control Ratios of Conductive Components (US 11,955,254) comes due Oct 9, 2027. Unpaid by Apr 10, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 of the patents on this record was granted since Aug 16, 2026
5 terms have ended since Aug 16, 2026

What they patent

The 5 largest of its 23 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

High Performance Data Communications Cable	4 in force	to Oct 2034
Hybrid High Frequency Separator with Parametric Control Ratios of Conductive Components	2 in force	to Sep 2041
Method and Protection Apparatus to Prevent Malicious Information Communication in IP Networks by Exploiting Benign Networking Protocols	2 in force	to Oct 2038
Systems and Methods for Retransmission Rate Selection to Support Fast Moving Devices	2 in force	to Oct 2036
Systems and Methods for Obtaining Available Channels for Fast Channel Switching	2 in force	to Oct 2035

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 7,772,494	Web for Separating Conductors in a Communication Cable In force Term ends Jan 24, 2028 · High confidence	In force	Term ends Jan 24, 2028	High confidence
US 8,198,536	Twisted Pair Cable Having Improved Crosstalk Isolation In force Term ends May 12, 2028 · Medium confidence	In force	Term ends May 12, 2028	Medium confidence
US 7,897,875	Separator Spline and Cables Using Same In force Term ends Feb 28, 2029 · High confidence	In force	Term ends Feb 28, 2029	High confidence
US 8,042,147	Network Security Appliance In force Term ends Oct 11, 2029 · High confidence	In force	Term ends Oct 11, 2029	High confidence
US 9,099,220	Flat Type Cable for High Frequency Applications In force Term ends May 2, 2031 · High confidence	In force	Term ends May 2, 2031	High confidence
US 8,431,825	Flat Type Cable for High Frequency Applications In force Term ends Jun 17, 2031 · High confidence	In force	Term ends Jun 17, 2031	High confidence
US 8,546,690	Multimedia Cable In force Term ends Jan 1, 2032 · High confidence	In force	Term ends Jan 1, 2032	High confidence
US 9,196,400	Systems and Methods for Producing Cable In force Term ends Jul 4, 2032 · High confidence	In force	Term ends Jul 4, 2032	High confidence
US 10,784,025	Systems and Methods for Producing Cable In force Term ends Jul 4, 2032 · High confidence	In force	Term ends Jul 4, 2032	High confidence
US 9,444,191	Shielded Plug Connector and Method for Producing a Shielded Plug Connector held by Belden Deutschland GmbH In force Term ends Nov 9, 2032 · High confidence	In force	Term ends Nov 9, 2032	High confidence

10 of 34 patents shown.

Pro members see all 34.

Pro members: see all 34 patents

Also on record, not counted in the 34: 57 patents in force now held by others · 124 patents ended · 13 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.

Export every term end as CSV · Pro

Belden Inc.