The Patent Finder
WE

Wellman, Inc.

Filings on record here from 2001, where this site's data begins
OverviewNotableFeesChangesPatent listSources & methods

0 patents currently held, every record listed here

6 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.
11 more records may belong here and await a decision; they are not counted.

This portfolio holds none of the 6 US patents in force on its record. from the record

Of the 6 now held by other companies, 4 name Dak Americas Mississippi Inc. as their current owner, and 2 more name another party. Each row says which.

Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
none
Next term end

When these terms end

Each bar runs from grant to computed term end. 2010 to 2041.
US 8,524,343 Polyester Resins for High-Efficiency Injection Molding no later than Nov 22, 2026
US 7,829,656 Solid Phase Polymerization Catalyst System Jul 11, 2027
US 7,763,701 Composite Solid Phase Polymerization Catalyst Jul 11, 2027
US 8,338,505 Alumina-Enhanced Polyester Resins and Methods for Making the Same Oct 8, 2028
US 7,784,719 Methods of Recycling Post-Consumer Carpet Jul 1, 2029
US D1,140,648 Cup Aug 11, 2041
201620222028203420402041
A dotted end marks a recorded terminal disclaimer this site has not resolved: the term can only be shorter than the bar, never longer.
Every computed term in this portfolio is shown above.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 patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
None of the currently held patents qualifies as notable.

Formerly held, still cited

Notable
Renewed at every maintenance window since the 2010 grant; no more fees are due before its term ends in 2027. A terminal disclaimer caps this term to an earlier patent's.
Ends Jul 2027 · High confidence
Also notable
Renewed at every maintenance window since the 2012 grant; no more fees are due before its term ends in 2028.
Ends Oct 2028 · High confidence
Also notable
Renewed at every maintenance window since the 2013 grant; no more fees are due before its term ends in 2026. 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.
Ends no later than Nov 2026 · Medium confidence

Fee deadlines

No maintenance fee falls due on this company's record before Nov 10, 2027.

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

Patents held now

Soonest term end first.
Also on record: 6 patents in force now held by others · 19 patents ended · 16 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.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
9 terminal disclaimers are on file with no resolved reference. No cap is applied and none is guessed
9 computed term dates come from a chain with an unresolved parent. A continuity parent has not yet been fetched from USPTO's records. The term is dated from this application's own claim; no earlier date is assumed until the parent is resolved.
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited