Proofpoint, Inc.
9 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.
Recorded under 2 name spellings.
30
Ending by 2030
Feb 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
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 Nov 30, 2026The maintenance fee for Domain Name Processing Systems and Methods (US 11,665,135) comes due Nov 30, 2026. Unpaid by Jun 1, 2027, it lapses early.
- 6 fees due Dec 6 to 30, 2026 · next Dec 6
- 3 fees due Jan 4 to 25, 2027 · next Jan 4
- 2 fees due Feb 1 to 15, 2027 · next Feb 1
- 5 fees due Mar 3 to 22, 2027 · next Mar 3
- 5 fees due Apr 3 to 24, 2027 · next Apr 3
- 4 fees due May 7, 2027
- 5 fees due Jun 10 to 19, 2027 · next Jun 10
- 10 fees due Jul 2 to 30, 2027 · next Jul 2
- 2 fees due Aug 11 to 25, 2027 · next Aug 11
- 9 fees due Sep 5 to 26, 2027 · next Sep 5
- 8 fees due Oct 7 to 30, 2027 · next Oct 7
Recent changes
- 10 of the patents on this record were granted since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,095,922 | Apparatus and Method for Detecting Images Within Spam In force · High confidence | In force | High confidence | |
| US 7,512,814 | Secure and Searchable Storage System and Method In force · High confidence | In force | High confidence | |
| US 7,594,116 | Mediated Key Exchange Between Source and Target of Communication In force · High confidence | In force | High confidence | |
| US 8,555,269 | System and Method for Securing Web Application Code and Verifying Correctness of Software In force · High confidence | In force | High confidence | |
| US 8,356,076 | Apparatus and Method for Performing Spam Detection and Filtering Using an Image History Table In force · High confidence | In force | High confidence | |
| US 7,716,297 | Message Stream Analysis for Spam Detection and Filtering In force · High confidence | In force | High confidence | |
| US 9,020,887 | Managing the Status of Documents in a Distributed Storage System In force · Medium confidence | In force | Medium confidence | |
| US 8,010,534 | Identifying Related Objects Using Quantum Clustering In force · High confidence | In force | High confidence | |
| US 7,783,597 | Email Filtering Using Recipient Reputation In force · High confidence | In force | High confidence | |
| US 7,779,399 | System and method for securing web application code and verifying correctness of software In force · High confidence | In force | High confidence |
Also on record, not counted in the 292: 9 patents in force now held by others · 27 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
38 pending · 2 abandoned · 2 no status recorded