US 10578818

US patent 10578818B1, titled "Optical transceiver," was filed on October 5, 2018, and issued on March 3, 2020. [cite: The patent was originally assigned to Prime World International Holdings Ltd and is currently assigned to Applied Optoelectronics Inc. The inventors are Yu Chen, Hsuan-Chen Shiu, and Che-Shou Yeh.

The abstract describes an optical transceiver comprising a main body, an elastic component, and a fastening component. The main body has two lateral surfaces and an outer surface with a confined groove. The elastic component is placed in this groove. A movable fastening component on the main body includes a linkage arm on the outer surface, two extending arms on the lateral surfaces, and a confined portion that extends into the groove to press the elastic component. The extending arms are designed to be detachably fastened to a cage.

The independent claims are summarized as follows:

• Claim 1: This claim describes an optical transceiver that can be plugged into a cage. It features a main body with an outer surface containing a confined groove, and two lateral surfaces. An elastic component is situated within this groove. A movable fastening component is also included, which has a linkage arm positioned on the main body's outer surface. This linkage arm has an opening that communicates with the confined groove, allowing the elastic component to be placed inside. Two extending arms are connected to the linkage arm and are located on the lateral surfaces, designed to detachably fasten to the cage. Additionally, a confined portion, connected to the linkage arm, extends into the confined groove to press the elastic component.
• Claim 10: This claim also describes an optical transceiver, but specifies that its main body has an outer surface defining two spatially separated confined grooves, rather than one. Accordingly, it includes two elastic components, each disposed in one of the two confined grooves. The fastening component is movably disposed on the main body and includes a linkage arm on the outer surface. This linkage arm has an opening in communication with the confined groove (singular, which appears to be a minor inconsistency given the preceding "two confined grooves" in the same claim, but interpreted literally as written) to allow the elastic component (singular, again interpreted literally) to pass through and be disposed in the confined groove. It further comprises two extending arms connected to the linkage arm and disposed on the two lateral surfaces, and two confined portions connected with the linkage arm that extend into the two confined grooves, respectively, to press the two elastic components.
• Claim 11: This independent claim builds upon the features of Claim 1, adding a pivot shaft and a bail. The pivot shaft is pivoted on the linkage arm of the fastening component, and the bail is connected to this pivot shaft. The bail has two positions: a horizontal position for pulling to remove the optical transceiver from the cage, and an upright position that facilitates the installation or removal of optical fibers without requiring the bail to be held manually.

As of April 26, 2026, a search for CAFC 2026 dockets related to patent number 10578818 did not return any specific cases in the provided search results. The provided CAFC links show general schedules for May, June, and July 2026, and a specific case from March 2026, but none explicitly mention patent 10578818. However, it is noted from the patent record that "Family has litigation" with a PTAB case IPR2026-00094 filed and instituted, and US cases filed in the California Northern District Court (5:24-cv-08165 and 3:24-cv-08165). These are not CAFC dockets, but indicate ongoing litigation at other levels.US patent 10578818B1, titled "Optical transceiver," was filed on October 5, 2018, and issued on March 3, 2020. [cite: The patent was originally assigned to Prime World International Holdings Ltd and is currently assigned to Applied Optoelectronics Inc. The inventors are Yu Chen, Hsuan-Chen Shiu, and Che-Shou Yeh.

The abstract describes an optical transceiver comprising a main body, an elastic component, and a fastening component. The main body has two lateral surfaces and an outer surface with a confined groove. The elastic component is placed in this groove. A movable fastening component on the main body includes a linkage arm on the outer surface, two extending arms on the lateral surfaces, and a confined portion that extends into the groove to press the elastic component. The extending arms are designed to be detachably fastened to a cage.

The independent claims are summarized as follows:

• Claim 1: This claim describes an optical transceiver that can be plugged into a cage. It features a main body with an outer surface containing a confined groove, and two lateral surfaces. An elastic component is situated within this groove. A movable fastening component is also included, which has a linkage arm positioned on the main body's outer surface. This linkage arm has an opening that communicates with the confined groove, allowing the elastic component to be placed inside. Two extending arms are connected to the linkage arm and are located on the lateral surfaces, designed to detachably fasten to the cage. Additionally, a confined portion, connected to the linkage arm, extends into the confined groove to press the elastic component.
• Claim 10: This claim also describes an optical transceiver, but specifies that its main body has an outer surface defining two spatially separated confined grooves, rather than one. Accordingly, it includes two elastic components, each disposed in one of the two confined grooves. The fastening component is movably disposed on the main body and includes a linkage arm on the outer surface. This linkage arm has an opening in communication with the confined groove (singular, which appears to be a minor inconsistency given the preceding "two confined grooves" in the same claim, but interpreted literally as written) to allow the elastic component (singular, again interpreted literally) to pass through and be disposed in the confined groove. It further comprises two extending arms connected to the linkage arm and disposed on the two lateral surfaces, and two confined portions connected with the linkage arm that extend into the two confined grooves, respectively, to press the two elastic components.
• Claim 11: This independent claim builds upon the features of Claim 1, adding a pivot shaft and a bail. The pivot shaft is pivoted on the linkage arm of the fastening component, and the bail is connected to this pivot shaft. The bail has two positions: a horizontal position for pulling to remove the optical transceiver from the cage, and an upright position that facilitates the installation or removal of optical fibers without requiring the bail to be held manually.

As of April 26, 2026, a search for CAFC 2026 dockets related to patent number 10578818 did not return any specific cases in the provided search results [cite: 3, 8, 11]. The provided CAFC links show general schedules for May, June, and July 2026, and a specific case from March 2026, but none explicitly mention patent 10578818. However, it is noted from the patent record that "Family has litigation" with a PTAB case IPR2026-00094 filed and instituted, and US cases filed in the California Northern District Court (5:24-cv-08165 and 3:24-cv-08165). These are not CAFC dockets, but indicate ongoing litigation at other levels.