| Serial Number | 79443632 |
| Word Mark | LIGHTIUM |
| Filing Date | Thursday, July 3, 2025 |
| Status | 680 - APPROVED FOR PUBLICATION |
| Status Date | Wednesday, May 20, 2026 |
| Registration Number | 0000000 |
| Registration Date | NOT AVAILABLE |
| Mark Drawing | 4 - Illustration: Drawing with word(s) / letter(s) / number(s) in Block form |
| Published for Opposition Date | NOT AVAILABLE |
| Goods and Services | Photonic integrated circuits (PICs); photonic computer chips; photonic integrated chips for use in artificial intelligence (AI) applications; semiconductor chiplets comprising one or more integrated photonic chips; photonic semiconductor chip sets; low-consumption, high-speed and high-optical efficiency photonic electro-optic on-insulator devices being semiconductor chips; optical devices, namely, encapsulated electro-optic modulators incorporating photonic integrated chips; photonics specialized computer hardware; photonic integrated chips for telecommunications, quantum photonics and data processing; thin-film lithium niobate (TFLN) integrated circuits; high-performance opto-electronic devices, namely, light emitting diodes (LEDs), lasers not for medical purposes, photodetectors being photoelectric sensors, and solar cells; photonic interposers and hybrid integration solutions, namely, semiconductor wafers; downloadable text files in the nature of process design kits (PDKs) for use in connection with photonic integrated circuits; design libraries and simulation models in the nature of downloadable electronic data files for use in the design of photonic circuits; recorded and downloadable computer software for the design, verification and installation of photonic components; optical receivers; fiber-optic connectors; semiconductor chips; semiconductor optical amplifiers; semiconductor devices; optical frequency metrology devices; semi-conductors; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity distribution or use; apparatus and instruments for sound, image or data recording, transmission, reproduction or processing; integrated circuit chips; computer chips; microchips; electronic circuits; integrated circuits; electronic components for integrated circuit cards; downloadable computer software for use in accessing process design kit (PDK) libraries for photonic integrated circuits |
| Goods and Services | Quality control for others, namely, testing, characterization, sorting and validation of high frequency photonic integrated circuits; quality control for others, namely, the measurement of optical, electrical and thermal performance of photonic devices; calibration services and quality control for others in the field of photonic components, including encapsulated modules and chiplets; metrological inspection of photonic chips for quality control purposes; on-demand testing of photonic integrated circuits for industrial or scientific applications; design, development, and maintenance of computer software for use in connection with process design kits (PDKs) for photonic integrated circuits; design and testing of new products, namely, phonetic components using process design kits (PDKs), for others; computer systems integration services, namely, process design kit (PDK) adaptation services for specific platforms or processes; scientific and technological services, namely, scientific research, analysis and design in the fields of photonic integrated circuits and communications technology; engineering services relating to information technologies and in the field of communications technology; technological consultancy services in the technology field of photonic integrated circuits and communications technology; telecommunications technology consultancy services; research in the fields of telecommunications technology, information technology and artificial intelligence technology; information technology engineering; design and development of photonic integrated circuits; scientific and technological services, namely, research and design in the field of photonic integrated circuits and communications technology; industrial analysis and industrial research in the field of photonic integrated circuits and communications technology; industrial design services; quality control and authentication services photonic integrated circuits and communications technology; design and development of computers and software; design and development of chips, photonic chips, silicon chips, integrated circuits and wafers for integrated circuits; quality control of integrated photonic devices; testing of photonic circuits during production; quality control for others, namely, end-of-line optical and electrical characterization services for high-frequency photonic circuits. |
| Goods and Services | Custom fabrication of high-frequency photonic integrated circuits, especially thin-film lithium niobate (TFLN) substrates; custom manufacture of active and passive components such as lasers, detectors, modulators, on photonic chips, including via micro-transfer, bonding or hybrid assembly techniques; custom fabrication of chips, photonic chips, integrated circuits, wafers for integrated circuits, chiplets, chipsets, and opto-electronic components; custom manufacture of photonic devices, including the encapsulation and interconnection of photonic devices; custom manufacture of photonic circuits, including the sorting of photonic circuits during production. |
| International Class | 009 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire extinguishing apparatus. |
| US Class Codes | 021, 023, 026, 036, 038 |
| Class Status Code | 6 - Active |
| Class Status Date | Thursday, February 12, 2026 |
| Primary Code | 009 |
| First Use Anywhere Date | NOT AVAILABLE |
| First Use In Commerce Date | NOT AVAILABLE |
| International Class | 040 - Treatment of materials. |
| US Class Codes | 100, 103, 106 |
| Class Status Code | 6 - Active |
| Class Status Date | Thursday, February 12, 2026 |
| Primary Code | 040 |
| First Use Anywhere Date | NOT AVAILABLE |
| First Use In Commerce Date | NOT AVAILABLE |
| International Class | 042 - Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software. |
| US Class Codes | 100, 101 |
| Class Status Code | 6 - Active |
| Class Status Date | Thursday, February 12, 2026 |
| Primary Code | 042 |
| First Use Anywhere Date | NOT AVAILABLE |
| First Use In Commerce Date | NOT AVAILABLE |
| Party Name | Lightium AG |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 25 - NOT AVAILABLE |
| Address | CH |
| Event Date | Event Description |
| Thursday, February 12, 2026 | SN ASSIGNED FOR SECT 66A APPL FROM IB |
| Sunday, February 15, 2026 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Sunday, February 15, 2026 | APPLICATION FILING RECEIPT MAILED |
| Monday, February 16, 2026 | ASSIGNED TO EXAMINER |
| Tuesday, February 24, 2026 | NON-FINAL ACTION WRITTEN |
| Wednesday, February 25, 2026 | NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW |
| Friday, March 27, 2026 | REFUSAL PROCESSED BY MPU |
| Friday, March 27, 2026 | NON-FINAL ACTION MAILED - REFUSAL SENT TO IB |
| Thursday, April 16, 2026 | REFUSAL PROCESSED BY IB |
| Wednesday, April 29, 2026 | TEAS RESPONSE TO OFFICE ACTION RECEIVED |
| Wednesday, April 29, 2026 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Wednesday, April 29, 2026 | TEAS/EMAIL CORRESPONDENCE ENTERED |
| Friday, May 8, 2026 | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED |
| Friday, May 8, 2026 | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED |
| Friday, May 8, 2026 | TEAS CHANGE OF CORRESPONDENCE RECEIVED |
| Wednesday, May 20, 2026 | EXAMINERS AMENDMENT -WRITTEN |
| Wednesday, May 20, 2026 | EXAMINERS AMENDMENT E-MAILED |
| Wednesday, May 20, 2026 | EXAMINER'S AMENDMENT ENTERED |
| Wednesday, May 20, 2026 | APPROVED FOR PUB - PRINCIPAL REGISTER |
| Wednesday, May 20, 2026 | NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED |