Also listed on Gardner Denver, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Sep 22, 2028 · High confidence
20-year base term ends Sep 22, 2028
Held by Sundyne, LLC
Filed Sep 22, 2008 as application 12/234,767 · Granted Dec 28, 2010
Base term, 20 years from filing
Today
2008
2028
Clock starts
Sep 22, 2008
Sep 22, 2008
Term ends
Sep 22, 2028
Sep 22, 2028
Granted
Dec 28, 2010
Dec 28, 2010
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
This patent's term is its 20-year base term, with no adjustment for 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 Sep 22, 2008, when this application, 12/234,767, was filed | Sep 22, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | Sep 22, 2028 | High confidence |
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 |
|---|---|---|---|
| Sep 22, 2008 Reel 21562, frame 683 | Robinson, Fronz; Saari, Juha | Hamilton Sundstrand Corporation | Assignment of Assignor's Interest |
| Feb 24, 2011 Reel 25854, frame 317 | Hamilton Sundstrand Corporation | Sundyne Corporation | Assignment of Assignor's Interest |
| Jan 16, 2012 Reel 27536, frame 541 | Sundyne Corporation | Sundyne Corporation; Gardner Denver Deutschland GmbH | Assignment of Assignor's Interest |
| Jan 16, 2012 reel/frame not recorded | Sundyne Corporation | Sundyne Corporation | Assignment of Assignor's Interest |
| Jan 16, 2012 reel/frame not recorded | Sundyne Corporation | Gardner Denver Deutschland GmbH | Assignment of Assignor's Interest |
| Dec 4, 2012 Reel 29405, frame 17 | Sundyne Corporation | Sundyne, LLC | Conversion of Corporation to LLC |
| Dec 20, 2012 Reel 29530, frame 539 | Sundyne, LLC | Deutsche Bank AG New York Branch, as Collateral Agent | Security Agreement |
| Aug 18, 2017 Reel 43602, frame 619 | Deutsche Bank AG New York Branch, as Collateral Agent | Sundyne, LLC | Termination and Release of Security Interest in Patents Recorded at Reel/Frame 029530/0539 |
| Aug 23, 2017 Reel 43373, frame 798 | Accudyne Industries, LLC; Haskel International, LLC; Milton Roy, LLC; Sundyne, LLC | Morgan Stanley Senior Funding, Inc., as Collateral Agent | Security Interest |
| May 21, 2019 Reel 49242, frame 255 | HMD Seal/Less Pumps Limited; Sundyne, LLC | Morgan Stanley Senior Funding, Inc., as Collateral Agent | Security Interest |
| May 21, 2019 Reel 49243, frame 92 | Morgan Stanley Senior Funding, Inc., as Collateral Agent | Accudyne Industries, LLC; Haskel International, LLC; Milton Roy, LLC; Sundyne, LLC | Release of Security Interest |
| May 21, 2019 reel/frame not recorded | Morgan Stanley Senior Funding, Inc., as Collateral Agent | Accudyne Industries, LLC | Release of Security Interest |
| May 21, 2019 reel/frame not recorded | Morgan Stanley Senior Funding, Inc., as Collateral Agent | Haskel International, LLC | Release of Security Interest |
| May 21, 2019 reel/frame not recorded | Morgan Stanley Senior Funding, Inc., as Collateral Agent | Milton Roy, LLC | Release of Security Interest |
| May 21, 2019 reel/frame not recorded | Morgan Stanley Senior Funding, Inc., as Collateral Agent | Sundyne, LLC | Release of Security Interest |
| Mar 17, 2020 Reel 52142, frame 908 | Morgan Stanley Senior Funding, Inc., as Collateral Agent | HMD Seal/Less Pumps Limited; Sundyne, LLC | Release of Security Interest |
| Mar 17, 2020 Reel 52184, frame 691 | Sundyne, LLC | Morgan Stanley Senior Funding, Inc. | Security Agreement |
| Mar 17, 2020 reel/frame not recorded | Morgan Stanley Senior Funding, Inc., as Collateral Agent | HMD Seal/Less Pumps Limited | Release of Security Interest |
| Mar 17, 2020 reel/frame not recorded | Morgan Stanley Senior Funding, Inc., as Collateral Agent | Sundyne, LLC | Release of Security Interest |
| Jun 22, 2022 Reel 60404, frame 239 | Sundyne, LLC | Bank of Montreal | Second Lien Security Agreement |
| Dec 19, 2023 Reel 66075, frame 120 | Bank of Montreal | HMD Seal/Less Pumps Limited; Sundyne, LLC | Release of Second Lien Patent Security Interests |
| Dec 19, 2023 reel/frame not recorded | Bank of Montreal | HMD Seal/Less Pumps Limited | Release of Second Lien Patent Security Interests |
| Dec 19, 2023 reel/frame not recorded | Bank of Montreal | Sundyne, LLC | Release of Second Lien Patent Security Interests |
| Jun 6, 2025 Reel 71530, frame 267 | Morgan Stanley Senior Funding, Inc. | HMD Seal/Less Pumps Limited; Sundyne, LLC | Release of First Lien Patent Security Interests |
| Jun 6, 2025 reel/frame not recorded | Morgan Stanley Senior Funding, Inc. | HMD Seal/Less Pumps Limited | Release of First Lien Patent Security Interests |
| Jun 6, 2025 reel/frame not recorded | Morgan Stanley Senior Funding, Inc. | Sundyne, LLC | Release of First Lien Patent Security Interests |
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.
What's changing
Sep 2028
Term ends Sep 22, 2028. No further fees fall due before then
Citations
8
later US patents cite this one
That is below the median of utility patents granted in 2010 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.