Prior art — US Patent 11988373

The current date is April 26, 2026.

I cannot directly search the USPTO database for live results. However, I can use the provided patent text, which includes "Prior art keywords" and a "Citations" section listing "Patent Citations," to identify the most relevant prior art for US patent 11988373.

The USPTO website provides a "Patent Public Search" tool for searching patents and patent application publications. However, direct interaction with this tool for live searches is not within my capabilities. I will rely on the information provided in the patent document itself.

Here are the patent citations listed in US11988373, along with their details and potential relevance to the claims:

Most Relevant Prior Art for US11988373:

US20060126025A1
- Full Citation: US20060126025A1 (Belliveau Richard S)
- Publication Date: 2006-06-15
- Priority Date: 1999-09-10
- Brief Description: Titled "Image projection lighting device," this patent application describes a lighting device, which likely includes a light source and housing.
- Potentially Anticipates: This patent could potentially anticipate elements of claim 1, particularly regarding a light head with a head housing, a light source, and potentially sensors if such a device were to detect internal conditions. Without a more detailed description of US20060126025A1's internal monitoring capabilities, it's difficult to pinpoint exact claim elements, but the general concept of an enclosed lighting device is present.
US20140119019A1
- Full Citation: US20140119019A1 (Hui Lien Science And Technology Co., Ltd.)
- Publication Date: 2014-05-01
- Priority Date: 2012-10-25
- Brief Description: Titled "Stage light," this patent application focuses on stage lighting. Stage lights often require robust housings and may benefit from internal monitoring.
- Potentially Anticipates: Similar to US20060126025A1, this could anticipate elements of claim 1, especially concerning the light head, light source, and housing in the context of a stage light. If it includes any form of environmental sensing or sealed structures, it could be highly relevant.
US20150103553A1
- Full Citation: US20150103553A1 (Pavel Jurik)
- Publication Date: 2015-04-16
- Priority Date: 2013-10-15
- Brief Description: Titled "Plasma light source automated luminaire," this patent application describes a luminaire with a plasma light source, which typically generates significant heat and may necessitate controlled internal environments.
- Potentially Anticipates: This patent could potentially anticipate aspects of claim 1, particularly concerning a light source generating heat within a housing, and the need for internal monitoring if a control system for the plasma light source accounts for internal environmental factors.
US20170184288A1
- Full Citation: US20170184288A1 (Ephesus Lighting, Inc.)
- Publication Date: 2017-06-29
- Priority Date: 2015-12-28
- Brief Description: Titled "Led illumination device with single pressure cavity," this patent application specifically mentions a "single pressure cavity," suggesting a sealed or partially sealed enclosure and potentially pressure monitoring.
- Potentially Anticipates: This patent appears highly relevant to claim 1, especially the concept of a sealed housing and monitoring internal pressure. The presence of a "single pressure cavity" strongly suggests features related to maintaining or monitoring the internal environment, which could directly anticipate the use of an air pressure sensor and a controller to determine sealing performance as described in claim 1.
US20190041291A1
- Full Citation: US20190041291A1 (Motorola Solutions, Inc.)
- Publication Date: 2019-02-07
- Priority Date: 2017-08-07
- Brief Description: Titled "Systems and methods for verifying sealing integrity in portable electronic devices," this patent application broadly addresses verifying sealing in electronic devices.
- Potentially Anticipates: This patent is very relevant as it explicitly deals with "verifying sealing integrity." While it focuses on "portable electronic devices," the underlying principles of using sensors and methods to test sealing could anticipate the control system and method for determining sealing performance in claim 1 of US11988373. The specific application to a light fixture would be a distinguishing feature, but the core mechanism of self-testing sealing could be anticipated.
US20210095834A1
- Full Citation: US20210095834A1 (Guangzhou Haoyang Electronic Co., Ltd.)
- Publication Date: 2021-04-01
- Priority Date: 2019-09-30
- Brief Description: Titled "Motor Braking System of Stage Light," this patent application from the same assignee as US11988373 relates to stage lights.
- Potentially Anticipates: While not directly about sealing, this patent's focus on stage lights (the same technical field as US11988373) might contain descriptions of housings or internal components that are relevant to claims pertaining to the overall structure or components within the light fixture, such as the support arm or base in claim 4. It's less likely to anticipate the sealing self-test feature directly.
US11060713B2
- Full Citation: US11060713B2 (Guangzhou Haoyang Electronic Co., Ltd.)
- Publication Date: 2021-07-13
- Priority Date: 2019-10-31
- Brief Description: Titled "Internal-circulating heat dissipation system for stage light," this granted patent from the same assignee as US11988373 deals with thermal management in stage lights.
- Potentially Anticipates: This patent's discussion of "internal-circulating heat dissipation" implies an enclosed system where temperature and potentially pressure management are critical. It could anticipate aspects of claim 1 related to temperature changes within the housing due to the light source, or claim 8 concerning a temperature control system. The method of using generated heat for sealing tests could find some conceptual overlap.
US11143392B2
- Full Citation: US11143392B2 (Guangzhou Haoyang Electronic Co., Ltd (Cn))
- Publication Date: 2021-10-12
- Priority Date: 2017-07-31
- Brief Description: Titled "Humidity alarm monitoring system for stage light," this granted patent from the same assignee specifically describes a monitoring system for stage lights.
- Potentially Anticipates: This patent is highly relevant to claim 1, particularly concerning the use of sensors and a monitoring system within a stage light. While it focuses on humidity, the underlying system for detecting and processing environmental conditions within the housing could anticipate the temperature and air pressure sensors and the controller for determining sealing performance. The concept of monitoring internal conditions for maintaining the light fixture's integrity is directly related.