Patent Document Type and Number Definitions
By |
Patent and Trademark Depository Library Program
Patent Document Type and Number Definitions
Following are examples and breakdowns of the different types of patents and trademarks.
Type |
Number |
Examples |
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|
Utility |
7 digits |
3394738 |
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|
Design |
D + 6 digits |
D277050 |
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|
Plant |
PP + 5 digits |
PP13845 |
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|
Defensive Publication |
T + 6 digits |
T103201 |
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|
Statutory Invention Registration (SIR) |
H + 7 digits |
H0000016 |
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|
Certificate of Correction |
Original Document Number Format |
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|
Reexamination Certificate |
B + 7 digits |
B14208747 |
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|
Reissue Design |
RD + 5 digits |
RD28854 |
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|
Reissue Plant |
RP + 5 digits |
RP28304 |
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|
Reissue Utility |
RE + 5 digits |
RE29774 |
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|
Reexamination Certificate of Reissue |
B + RE + 5 digits |
BRE28576 |
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|
"X" Patents |
X + 000 + 4 digits |
X0004325 |
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|
"X" Patent Reissue |
RX + 4digits |
RX4325 |
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|
Additional Improvements |
AI + 4 digits |
AI0013 |
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|
Trademark Registration |
7 Digits |
0692593 |
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|
Trademark Registration(Post-Issuance Document) |
7 digits |
0703255 |
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Last Modified: December 13, 1996
© 1996 US Patent and Trademark Office