Patent Pending Status

Patent pending is a formal legal status with specific meaning and timing: DEFINITION OF PATENT PENDING: an invention is 'patent pending' from the time a patent application (provisional or non-provisional) is filed at the USPTO until the patent is either granted or the application is abandoned; the term 'patent pending' or 'patent applied for' may be applied to a product or packaging to notify the public that a patent application has been filed; WHEN PATENT PENDING BEGINS: PROVISIONAL APPLICATION: patent pending status begins immediately upon filing a provisional application; the provisional is not examined and cannot issue as a patent, but its filing date establishes the start of patent pending status; NON-PROVISIONAL APPLICATION: patent pending begins upon filing the non-provisional; if a non-provisional claims priority to a provisional, the inventor can say 'patent pending' from the provisional's filing date; INTERNATIONAL APPLICATIONS: filing a PCT application also creates patent pending status in all PCT member countries; WHAT PATENT PENDING DOES NOT DO: patent pending does NOT grant any enforceable rights against infringers; a competitor who makes, uses, or sells the claimed invention during the patent pending period is NOT liable for patent infringement (only published applications create potential provisional rights — see § 154(d)); patent pending DOES NOT prevent competition; competitors can still make competing products; patent pending is primarily a WARNING and MARKETING TOOL; WHEN PATENT PENDING ENDS: upon patent issuance (now 'patented'); upon abandonment of the application (the application is withdrawn or no longer active); CONTINUING TO SAY PATENT PENDING AFTER PATENT ISSUES: once a patent issues, the product must be marked with the patent number (§ 287); continuing to say 'patent pending' after the patent issues and marking is required is technically incorrect; the inventor should switch to marking with the patent number.

Provisional rights allow damages from the publication date, not just the patent issue date: STATUTE — 35 U.S.C. § 154(d): 'In the case of an application for patent that is published under section 122(b), the applicant shall have the same right to obtain reasonable royalty damages against any infringer who, during the period beginning on the date of publication of the application and ending on the date the patent is issued, makes, uses, offers for sale, or sells in the United States the invention as claimed in the published application, if the publication date of the application that resulted in the patent is at least... nine months before the date the patent issues'; KEY REQUIREMENTS FOR § 154(d) PROVISIONAL RIGHTS: (1) THE APPLICATION MUST HAVE BEEN PUBLISHED: applications are automatically published 18 months after the earliest effective filing date; early publication can be requested; applications NOT published (which requires a non-publication request) have NO provisional rights; (2) ACTUAL NOTICE: the alleged infringer must have had ACTUAL NOTICE of the published application; actual notice (not constructive notice from the publication alone) is required; a letter; email; or other communication explicitly notifying the infringer of the specific published application is the typical method; (3) SUBSTANTIALLY IDENTICAL CLAIMS: the claims in the ISSUED PATENT must be substantially identical to the claims in the PUBLISHED APPLICATION that the infringer was notified about; if the claims were materially narrowed or changed during prosecution, the provisional rights may not apply; (4) REASONABLE ROYALTY ONLY: § 154(d) damages are limited to a REASONABLE ROYALTY (not lost profits); PRACTICAL APPLICATION: once an application publishes, the applicant's attorney should send an actual notice letter to any known infringers; this starts the clock for potential provisional damages; the damages are not collected until the patent issues; STRATEGIC USE: monitoring competitor products during prosecution; issuing actual notice letters upon publication; shapes settlement discussions early.

Patent marking is required to recover pre-suit damages and has specific compliance rules: PATENT MARKING REQUIREMENT — 35 U.S.C. § 287: 'Patentees, and persons making, offering for sale, or selling within the United States any patented article for or under them... may give notice to the public that the same is patented, either by fixing thereon the word 'patent' or the abbreviation 'pat.' together with the number of the patent... and in the event of failure so to mark, no damages shall be recovered by the patentee in any action for infringement, except on proof that the infringer was notified of the infringement and continued to infringe after such notice, in which event damages may be recovered only for infringement occurring after such notice'; WHAT MARKING FAILURE MEANS: if a patent owner sells a product covered by a patent WITHOUT marking it, the patent owner CANNOT recover damages for infringement that occurred BEFORE the infringer received actual notice; actual notice = a demand letter; filing a lawsuit; etc.; with proper marking, damages can be recovered from whenever the infringer first made, used, or sold the product (the 6-year statute of limitations runs backward from filing); VIRTUAL MARKING: since 2011 (AIA), patent owners can use 'virtual marking' by associating a freely accessible website URL with the word 'patent': 'Patent: [URL]'; the website lists the patent numbers; this allows easy updating when new patents issue or old ones expire (without physically changing product markings); MARKING ALL COVERED PRODUCTS: if any product covered by the patent is sold un-marked, the marking requirement applies; partial marking is insufficient; CONTINUOUS MARKING OBLIGATION: when a new patent issues covering an existing product, the product must be marked with the new patent number promptly; delay in marking limits recoverable damages; FALSE MARKING — § 292: marking a product as 'patented' when it is NOT covered by the marked patent is false marking; FALSE MARKING CLAIM: 'any person may sue for the penalty of' $500 per false marking; post-AIA, only the US government can bring a false marking suit for the statutory penalty; a competitive injury claimant can sue for damages; marking an expired patent intentionally is false marking; BEST PRACTICE: maintain a patent marking database that cross-references products and applicable patents; update regularly as patents issue and expire.

Patent pending is a legal status with both marketing value and legal constraints: LEGITIMATE MARKETING USES OF PATENT PENDING: DETERS COPYING: notifying competitors that patent rights are being sought signals that copying may result in future liability; some competitors who see 'patent pending' are deterred from copying even without actual legal rights existing yet; INVESTOR SIGNALING: 'patent pending' tells investors the company is pursuing IP protection; suggests innovation and commercial value; CUSTOMER CONFIDENCE: in competitive markets, 'patent pending' indicates the product has novel features; PRESS RELEASES AND MARKETING: saying 'our technology is patent pending' is legally accurate if an application has been filed; WHAT YOU CANNOT DO: NEVER falsely claim 'patent pending' for a product when no application has been filed; this is criminal misrepresentation under 35 U.S.C. § 292 and can also constitute unfair competition; do NOT say 'patent pending' AFTER the patent has issued without also providing the patent number (§ 287 marking is then required); do NOT imply that competitors' products infringe your pending claims (your claims may change; the application may not issue); ACCURATE STATEMENTS: 'this product is protected by a pending US patent application'; 'patent applied for'; 'patent pending (US Patent Application Serial No. 17/123,456)' — this level of specificity is appropriate for B2B communications; WHERE TO MARK: products; product packaging; user manuals; digital products (software UI; website footer; product documentation); INTERNATIONAL CONTEXT: some countries have similar marking practices; 'Brevet en instance' (France); 'Patent angemeldet' (Germany); the US marking requirement (§ 287) applies to US products; marking foreign products does not satisfy US § 287 for US patent purposes; WHEN PATENT PENDING BECOMES A LIABILITY: if the claims are very broad and cover competitor products, saying 'patent pending' publicly alerts competitors; some prefer stealth prosecution (not marking) to avoid alerting competitors during prosecution.

Published patent applications are a key competitive intelligence source: PUBLICATION OF PATENT APPLICATIONS: US non-provisional applications are automatically published 18 months after the earliest effective filing date; the publication date is NOT the filing date; a patent application filed today will be published approximately 18 months from now; NON-PUBLICATION REQUEST: an applicant can request that their application not be published (a non-publication request under 37 C.F.R. § 1.213); REQUIREMENT: the applicant must certify that no foreign application has been filed; if the applicant later files a foreign application, the non-publication request must be rescinded within 45 days of the foreign filing; a non-publication request means NO § 154(d) provisional rights; the patent surprises competitors when it issues; PATENT APPLICATION DATABASES: published applications are searchable at: USPTO Patent Center (full text); Espacenet (EPO; international); Google Patents (user-friendly search); COMPETITOR MONITORING STRATEGY: patent watch programs monitor competitor application publications; new publications from competitors reveal R&D direction; claims in published applications signal where the competitor intends to exclude others; HOW COMPETITORS RESPOND TO PUBLISHED APPLICATIONS: INVALIDATION: before the patent issues, competitors can submit prior art to the USPTO via a THIRD-PARTY PREISSUANCE SUBMISSION (37 C.F.R. § 1.290); much cheaper than IPR; no estoppel attached; must be submitted before the later of: 6 months after publication; the date of a first office action rejecting any claims; DESIGN-AROUND: competitors analyze the published claims and design their products to fall outside the claims; more effective the earlier the analysis is done (before the patent issues and claims might be amended); MONITORING FOR CLAIM CHANGES: competitors track continuation applications that claim priority to the published application; the continuation can claim different (potentially broader) subject matter under the same priority date; INTERVENTION IN PROSECUTION: third-party preissuance submissions allow the public to put prior art in front of the examiner before issuance.