PDEMS holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 1 (Chemicals) with 1 filings. The WikiTrademarks Expansion Score is 1/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed July 7, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
No activity recorded yet.
Ownership & Assignment History
2 records| Date | From | To |
|---|---|---|
| Feb 21, 2017 |
AIR PRODUCTS AND CHEMICALS, INC.
|
VERSUM MATERIALS US, LLC
TEMPE, ARIZONA
|
| Oct 27, 2016 |
VERSUM MATERIALS US, LLC
|
CITIBANK, N.A., AS COLLATERAL AGENT
NEW CASTLE, DELAWARE
|
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 78248450 | PDEMS | May 12, 2003 | Pending | 001 Chemicals | MERCK KGAA |
Weekly visibility reports showing how ChatGPT mentions PDEMS, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: PDEMS trademark portfolio
What trademarks does PDEMS hold?
PDEMS holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 1 (Chemicals). The most recent filings are registered to MERCK KGAA.
How many trademarks does PDEMS have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to PDEMS. The brand has been actively filing since May 2003. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does PDEMS file most often?
PDEMS's most active class is NICE Class 1 (Chemicals), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the PDEMS trademark?
The most recent filings under the PDEMS mark are registered to MERCK KGAA. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is PDEMS expanding into new categories?
The current WikiTrademarks Expansion Score for PDEMS is 1 out of 100, which is low — the brand is focused on defending its existing categories rather than expanding. The score combines NICE class breadth, filing velocity, and the rate of cross-class movement from the brand's filing history.
How can I track new PDEMS trademark filings?
Click the Watch Brand button at the top of this page to add PDEMS to your Watchlist. New filings show up on your WikiTrademarks dashboard within 24 to 48 hours of being public, alongside any class expansions, status changes, or assignment events.
More on this portfolio: Compare PDEMS to another owner · Browse all NICE classes · Most valuable brands
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