Patent Expiry Calendar
2026 expirations
4 patents entering the public domain in 2026, accumulating 651 forward citations. Most influential: How Modified RNA Tricks Cells Into Making Proteins Without Triggering Attacks (322 citations).
Patents expiring
4
Total citations
651
Peak month
August
Expirations by Month
J
F
M
A
M
J
J
A
S
O
N
D
Most-Cited Patents Expiring in 2026
01020304
How Modified RNA Tricks Cells Into Making Proteins Without Triggering Attacks
US 8278036University of Pennsylvania Pennexp. August 2026
322
cit.
Displaying Friends' Activities in a Social Network Feed
US 7669123Facebook Incexp. August 2026
231
cit.
How a Special Fiber Stub Cleans Up Light Signals
US 7267494Finisarexp. January 2026
81
cit.
How Mobile Phones Can Securely Authorize Payments Using Random ID Codes
US 7577616Individualexp. September 2026
17
cit.
Month-by-Month Breakdown
January
1 patentsAugust
2 patents