Obviousness

The obviousness of US patent 11690782 under 35 U.S.C. § 103 can be analyzed by considering combinations of prior art references that would render its claims obvious to a person having ordinary skill in the art (PHOSITA) as of its priority date, March 19, 2008. The provided patent text for US11690782 explicitly states that it is a continuation-in-part of U.S. patent application Ser. No. 12/051,521 (which issued as U.S. Pat. No. 8,588,593), and that "the disclosures of each of which are incorporated herein, by reference, in their entirety." Therefore, the disclosure of U.S. Pat. No. 8,588,593 (hereinafter, "the Parent Patent") serves as a primary prior art reference.

For the purpose of this analysis, the "claims" of US11690782 are presumed to encompass the core inventive concepts outlined in its Summary and Detailed Description. These concepts include:

1. Dynamic and Targeted IR Control: Independently controlling infrared (IR) emitters within a sauna to tune peak IR frequency emission ranges and radiated power levels, and targeting these emitters at desired locations on a user's body.
2. Diverse IR Emitter Combinations: Utilizing a plurality of IR heating elements, such as LEDs, high-resistance polyimide panels, ceramic heaters, and carbon black-based heaters, potentially combined in a single unit, to emit various IR wavelengths (near, mid, far) or a multi-peak spectrum.
3. Dual Sauna Experience: Designing IR heating elements to generate temperatures sufficient for both IR sauna experiences and traditional (convection) sauna experiences.
4. Integrated Smart Sauna System: Incorporating a computing device, control panels (internal, external, or remote), a monitoring device for collecting biological data (e.g., blood pressure, heart rate, temperature, perspiration), and networking capabilities to manage user profiles, implement training/wellness programs, and perform diagnostic functions.

Combinations of Prior Art References and Motivation for Combination

1. Combination: Disclosure of U.S. Pat. No. 8,588,593 + General Knowledge of Control Systems and IR Emitters

• Teaching/Suggestion: The detailed description of US11690782, by virtue of incorporating the Parent Patent's disclosure, inherently describes the underlying elements for dynamic and targeted IR control. This includes a sauna (100) with multiple IR emitters (140, 142, 144, 146) configurable for zone-heating, various types of IR heating elements (LEDs, thermal, ceramic, planar) that can be combined in a single emitter (900), and driver circuitry (960) capable of tuning wavelength ranges and power levels using techniques like pulse width modulation. The patent also illustrates an IR emitter (1000) with independently controllable sections for different peak emission wavelengths, controlled by devices like thermocouples. Furthermore, methods (FIG. 11, FIG. 12) for receiving and applying wavelength, power, and user-specific targeting information are detailed. The patent explicitly notes that "IR emitters in accordance with exemplary embodiments permit a user to select one or more temperatures (or peak-infrared wavelength), with different temperatures/peak wavelengths being selectable for different heating elements."

• Motivation to Combine: A PHOSITA in 2008 would have been well aware that different IR wavelengths offer distinct therapeutic benefits and penetration depths. To provide a more versatile and effective sauna experience, a PHOSITA would have been motivated to combine different known IR emitter types (e.g., LEDs for near-IR, ceramic/carbon for mid/far-IR) within a sauna system. The implementation of independent control over these emitters, including tuning their power and emission spectra, would be a straightforward application of existing electrical control technologies (e.g., microcontrollers, variable power supplies, PWM) to customize the therapeutic output. The concept of directing heat to specific body parts for localized therapy was also known, providing a clear motivation to arrange and control emitters to achieve a "zone-heating effect" for targeted treatment.

2. Combination: Disclosure of U.S. Pat. No. 8,588,593 + General Knowledge of Integrated "Smart" Systems and Monitoring Devices

• Teaching/Suggestion: The US11690782 patent, through its incorporated disclosure, presents a comprehensive "smart" sauna system. This includes internal (128) and external (126) control panels (potentially touchscreens) for user interaction, a monitoring device (152) for collecting biological data such as heart rate, blood pressure, and temperature, and a computing device (150) to process this data and control sauna features. The system is described as being connectable to a network (406) with a server (402) for remote management, user profiles, "training programs," and "wellness programs" that adapt sauna settings based on user progress and biological data. Additionally, a diagnostic module (416) is disclosed for detecting and reporting electrical failures, generating repair plans, and even automating repair requests over a network.

• Motivation to Combine: As of March 2008, the integration of computing devices, user interfaces, sensors, and networking into various consumer and commercial appliances was common. The "Prior art keywords" already include "sauna, diagnostic, information, user, module", suggesting these concepts were generally known in relation to saunas. A PHOSITA would have been motivated to integrate these known "smart" technologies into a sauna to enhance user experience, safety, and functionality. For instance, using biological feedback from a monitoring device to dynamically adjust sauna settings would be an obvious application of feedback control to optimize therapeutic outcomes and ensure user comfort and safety. The development of "training programs" and "wellness programs" based on user goals (e.g., detoxification, weight loss) and tracking progress is a logical extension of personalized fitness technology. Furthermore, connecting the sauna to a network for remote control, diagnostic reporting, and automatic updates would be an obvious means to improve convenience, maintenance, and serviceability, leveraging widely adopted network capabilities.

Overall Obviousness Conclusion:

Given that US11690782 is a continuation patent, its claims are highly likely to be directed to subject matter already thoroughly disclosed in its Parent Patent, U.S. Pat. No. 8,588,593, which shares the same priority date and is entirely incorporated by reference. Even if the claims of US11690782 are not literally anticipated by the claims of the Parent Patent, the comprehensive disclosure of the Parent Patent, combined with the general knowledge of a PHOSITA in 2008 regarding electronic control systems, various IR technologies, physiological monitoring, and networked devices, would render the inventive concepts of US11690782 obvious. The motivation to combine these known elements and principles would stem from a desire to create a more effective, customizable, user-friendly, and maintainable sauna system.