HDC holds 3 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals) with 2 filings. The WikiTrademarks Expansion Score is 5/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed August 27, 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 |
|---|---|---|
| Jul 3, 2015 |
THE ESTATE OF RAYMOND HARRINGTON, LEGAL...
|
WELL FLOW INTERNATIONAL WLL
MANAMA
|
| Oct 3, 2014 |
HARRINGTON, RAYMOND A., MR.
|
THE ESTATE OF RAYMOND HARRINGTON
CLOGHERSHEAD
|
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 86834194 | HDC | Nov 30, 2015 | Pending | 005 Pharmaceuticals | HUYNH, HONG T. |
| 79015708 | HDC | Mar 30, 2005 | Pending | 003 Cosmetics & Cleaning 005 Pharmaceuticals 010 Medical Devices | S & C Polymer Silicon- und Composite Spezialitäten GmbH |
| 78246550 | HDC | May 07, 2003 | Pending | 001 Chemicals | WELL FLOW INTERNATIONAL WLL |
Weekly visibility reports showing how ChatGPT mentions HDC, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: HDC trademark portfolio
What trademarks does HDC hold?
HDC holds 3 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals), Class 3 (Cosmetics & Cleaning), Class 10 (Medical Devices). The most recent filings are registered to HUYNH, HONG T..
How many trademarks does HDC have at the USPTO?
WikiTrademarks tracks 3 USPTO trademark filings attributed to HDC. 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 HDC file most often?
HDC's most active class is NICE Class 5 (Pharmaceuticals), with 2 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the HDC trademark?
The most recent filings under the HDC mark are registered to HUYNH, HONG T.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is HDC expanding into new categories?
The current WikiTrademarks Expansion Score for HDC is 5 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 HDC trademark filings?
Click the Watch Brand button at the top of this page to add HDC 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 HDC to another owner · Browse all NICE classes · Most valuable brands
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