Also listed on McDATA Corporation, an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Jun 15, 2028 · High confidence

Computed 20-year base term

Held by Avago Technologies International Sales Pte. Limited

Filed Jun 29, 2005 as application 11/171,578 · Granted Oct 27, 2009

Base term plus 1082 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Jun 15, 2028

2005 2028

Clock starts
Jun 29, 2005

Term ends
Jun 15, 2028

Granted
Oct 27, 2009

base term patent term adjustment fee events 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

1,082

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

None

Terminal disclaimer

No disclaimer on this record.

3 of 3

Maintenance fees paid

Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.

Family applications on record here

Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term runs 1082 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.

Step	Input	Date after this step	Confidence
Base term, 20 years from filing	Clock starts Jun 29, 2005, when this application, 11/171,578, was filed	Jun 29, 2025	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+1082 days, USPTO patent term adjustment record	Jun 15, 2028	High confidence
Terminal disclaimer cap	None on record	no cap applied	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	3 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Jun 15, 2028	High confidence

This family

US 7,609,654	this patent Jun 2028	Jun 2028
US 8,175,001	Lapsed on the fee record May 2024	May 2024

The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.

Recorded	Assignor	Assignee	Conveyance
Jun 29, 2005 Reel 16751, frame 586	Lubeck, Mark; Kondapalli, Naveen; Kasaraneni, Jagadeesh	McDATA Corporation	Assignment of Assignor's Interest
Dec 22, 2008 Reel 22012, frame 204	Brocade Communications Systems, Inc.; Foundry Networks, Inc.; Inrange Technologies Corporation; McDATA Corporation	Bank of America, N.A. as Administrative Agent	Security Agreement
Jan 20, 2010 Reel 23814, frame 587	Brocade Communications Systems, Inc.; Foundry Networks, LLC; Inrange Technologies Corporation; McDATA Corporation; McDATA Services Corporation	Wells Fargo Bank, National Association, as Collateral Agent	Security Agreement
Dec 17, 2012 Reel 29486, frame 74	McDATA Corporation	Brocade Communications Systems, Inc.	Assignment of Assignor's Interest
Jan 21, 2015 Reel 34792, frame 540	Bank of America, N.A., as Administrative Agent	Brocade Communications Systems, Inc.; Inrange Technologies Corporation; Foundry Networks, LLC	Release of Security Interest
Jan 21, 2015 reel/frame not recorded	Bank of America, N.A., as Administrative Agent	Brocade Communications Systems, Inc.	Release of Security Interest
Jan 21, 2015 reel/frame not recorded	Bank of America, N.A., as Administrative Agent	Inrange Technologies Corporation	Release of Security Interest
Jan 21, 2015 reel/frame not recorded	Bank of America, N.A., as Administrative Agent	Foundry Networks, LLC	Release of Security Interest
Jan 22, 2015 Reel 34804, frame 793	Wells Fargo Bank, National Association, as Collateral Agent	Brocade Communications Systems, Inc.; Foundry Networks, LLC	Release of Security Interest
Jan 22, 2015 reel/frame not recorded	Wells Fargo Bank, National Association, as Collateral Agent	Brocade Communications Systems, Inc.	Release of Security Interest
Jan 22, 2015 reel/frame not recorded	Wells Fargo Bank, National Association, as Collateral Agent	Foundry Networks, LLC	Release of Security Interest
Dec 13, 2017 Reel 44891, frame 536	Brocade Communications Systems, Inc.	Brocade Communications Systems LLC	Change of Name
Oct 18, 2018 Reel 47270, frame 247	Brocade Communications Systems LLC	Avago Technologies International Sales Pte. Limited	Assignment of Assignor's Interest

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

What's changing

Jun 2028

Term ends Jun 15, 2028. No further fees fall due before then

Note

The 1082 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

later US patents cite this one

That is top 10% of utility patents granted in 2009 in our data, the only group it is compared against. How we rank

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

Method of Evaluating Network Connectivity Between Network Resources