Filing activity peaked in 2021 at 68 families and has declined since, with the 2022 midpoint at 39. That pattern indicates the field is past its most active filing period rather than accelerating, though the most recent years are understated because publication typically lags filing by about eighteen months. New filings are more likely to target narrower formulation or QC variants than the base automated-molding mechanics, which were largely claimed earlier in the cycle.

Recent-year momentum across tracked assignees is low industry-wide, with the leading assignee showing only a single filing in the latest tracked year and most others showing none. This is not a field with one dominant, still-accelerating filer; instead, activity is spread thinly and co-filing is uncommon, with only five co-assignee pairs identified across the entire 792-family corpus. That distribution suggests opportunity for new entrants who file narrowly and specifically rather than trying to out-file an incumbent.

US6613185B1 claims a self-bonding curable silicone elastomer built around unsaturated aliphatic trialkoxysilanes such as allyltrimethoxysilane, aimed at forming a high-strength adhesive bond without a controlled-humidity cure environment or special ventilation. It is a composition and bonding-method patent tied to a specific chemistry and application context — sealing glass or metal substrates in glass-top or ceramic-top ranges and ovens — rather than a broad claim over automated dispensing or molding generally. Anyone working with a different silane chemistry, a different cure mechanism, or outside the appliance-sealing application is working outside its literal claim scope, though a full claim chart is the only way to confirm freedom to operate.

G01N (material analysis and testing) leads with 138 records, followed by B01L (lab apparatus) at 113 and B29C (shaping of plastics) at 107. The fact that testing and lab-apparatus subclasses outrank the shaping subclass itself means more of the recent claim activity in this corpus concerns verification, sensing and dispensing infrastructure than the molding process. Polymer chemistry (C08L, C08K, C08G) and coatings (C09D) form a secondary but still substantial cluster, so formulation claims remain a live area even as core process claims thin out.

The thinner sub-areas relative to the crowded core include in-line cure-state sensing for LSR, automated dispense-head calibration, silicone-specific coating adhesion testing, and condensation-cure additive metering. These sit adjacent to the heavily filed shaping and testing subclasses but have not accumulated the same density of prior art. A first claim in one of these branches — for example, a specific in-line sensor arrangement tied to a defined cure-state signal and feedback loop to the dispense head — is more likely to clear than a claim written broadly over automated LSR molding itself.