Laser Cleaning System Patent Landscape 2026
Laser Cleaning System Patent Landscape in 2026
The laser cleaning system patent space is moderately concentrated, with the top five filers accounting for 40% of the hundred largest filers’ combined records and Cauldron holding a clear lead. Activity peaked in 2020 and has since eased, placing the field in a decline stage — though adjacent branches in semiconductor and photolithography applications remain comparatively sparse.
Cauldron leads a moderately concentrated field
Cauldron sits at the top of the top five filers — Cauldron, G C Laser Systems, Lockheed Martin, Potomac Photonics, and Automation Innovation — together hold 40% of the combined records of the hundred largest filers, indicating moderate but not extreme concentration.
A visible tier gap separates the top three applicants from the remainder: Potomac Photonics enters Below rank five, individual counts drop to single digits, suggesting that the competitive core is narrow.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Cauldron | 28 | |
| 2 | G C Laser Systems | 20 | |
| 3 | Lockheed Martin Corporation | 16 | |
| 4 | Potomac Photonics Inc | 8 | |
| 5 | Automation Innovation Pty Ltd | 7 | |
| 6 | Trustees of Boston University | 5 | |
| 7 | Engelsberg Audrey C | 4 | |
| 8 | UVTech Systems | 4 | |
| 9 | 6684327 Canada Inc | 3 | |
| 10 | ATS Industrial Automation Inc | 3 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Siemens Mobility Pty Ltd | 3 | |
| 12 | Hubei Baiyi Technology Development Co Ltd | 3 | |
| 13 | Dehais Joseph A | 3 | |
| 14 | Surclean Inc | 3 | |
| 15 | Illinois Tool Works Inc | 2 | |
| 16 | Institute of Semiconductors, Chinese Academy of Sciences | 2 | |
| 17 | Duignan Michael T | 2 | |
| 18 | Chongqing Kaiwoode Optoelectronic Automation Equipment Co Ltd | 2 | |
| 19 | Innovaneer Inc | 2 | |
| 20 | Beijing University of Technology | 2 |
Cauldron’s lead, spread evenly across cleaning, welding, and photolithography IPC classes, points to a platform strategy rather than a single-application focus. This breadth gives it structural resilience but also signals that no single applicant has staked out dominance in any one sub-application.
Filing counts for 2024–2026 are expected to rise as pending applications publish; treat recent-period figures as under-counted rather than indicative of further decline. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity peaked in 2020; technology mix centres on laser-material interaction
The two charts below show annual filing volume from 2017 onward and the distribution of IPC technology classes across the corpus. Together they reveal a field that expanded sharply to a 2020 peak and is now contracting, while remaining anchored in core laser-material interaction classes.
Annual filing trend
Filings rose from 10 in 2017 to a peak of 25 in 2020, then declined to 9 in 2022 and continued lower. Figures for 2024–2026 reflect publication lag and should be treated as incomplete; the apparent drop in those years does not confirm further structural decline beyond the post-2020 trend.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B23K (Welding, soldering & brazing) and B08B (Cleaning, general) are the two dominant classes, reflecting the core laser-ablation and surface-preparation use cases. G03F (Photolithography) and H01L (Semiconductor devices) appear at lower but notable levels, indicating that microelectronics applications form a distinct secondary cluster. Optical systems (G02B), heat treatment (C21D), and laser physics (H01S) each occupy smaller shares, pointing to enabling-technology coverage rather than application-specific depth.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Laser cleaning system
A laser cleaning system including a laser source, an energy-transferring optical fiber, a laser cleaning head, a coreless motor, a connection lens barrel, and a mirror. (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Photoreactive surface processing | 331 |
| 2 | Removal of surface contaminants by irradiation fro… | 174 |
| 3 | Removal of surface contaminants by irradiation usi… | 128 |
| 4 | Removal of surface contaminants by irradiation fro… | 124 |
| 5 | Removal of surface contaminants by irradiation fro… | 100 |
| 6 | Systems and methods of laser texturing of material… | 74 |
| 7 | Laser system for removal of graffiti | 70 |
| 8 | Material delivery system for miniature structure f… | 59 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the patent structure means for R&D positioning
The combination of a post-peak lifecycle, a narrow competitive core, limited co-filing activity, and a US-led filing geography shapes where new entrants can most efficiently deploy R&D resources.
Field is in decline after a 2020 peak
Annual filings eased back from the 2020 peak of 25 records and have continued lower, placing the field in a decline stage. This suggests that foundational system architectures are largely established and that incremental differentiation — rather than broad platform patents — is the more viable near-term strategy. Researchers should focus on specific sub-applications or enabling subsystems where white space persists.
Lifecycle: DeclineTop three applicants dominate; mid-tier is thin
Cauldron, G C Laser Systems, and Lockheed Martin collectively account for a disproportionate share of records among the leading filers, and the drop-off after rank five is steep. A new entrant faces established IP in core cleaning and welding applications but will encounter much lighter coverage in adjacent semiconductor and optical-control branches. Targeting those branches reduces freedom-to-operate risk.
Concentration: ModerateCo-filing is sparse; Automation Innovation and Siemens are the most active pair
The most active co-filing relationship is between Automation Innovation Pty Ltd and Siemens Mobility Pty Ltd, with two jointly filed records; Automation Innovation and Siemens Industry Inc share one additional joint filing. Engelsberg Audrey C and Cauldron (listed as the large limited partnership entity) also share two co-filed records. Overall ecosystem collaboration is limited, indicating that the field has developed largely through independent, parallel efforts rather than consortia or open-innovation partnerships.
Collaboration: LowUS leads; China and Europe are material secondary markets
The United States accounts for the largest filing count at the jurisdiction level, followed by China and Europe (EPO). Australia appears notably higher than typical for an advanced-manufacturing topic, reflecting the presence of Automation Innovation Pty Ltd. WIPO (PCT) filings indicate some degree of international prosecution strategy. Japan and South Korea show limited coverage despite being major laser-equipment manufacturing hubs, which may signal an enforcement gap or a commercial opportunity in those markets.
Lead Office: USGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| Automation Innovation Pty Ltd | Siemens Mobility Pty Ltd | 2 |
| Engelsberg Audrey C | Cauldron LP | 2 |
| Automation Innovation Pty Ltd | Siemens Industry Inc | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Cauldron and Lockheed Martin lead, with diverging recent trajectories
The top two non-individual applicants by patent records differ markedly in recent activity: Cauldron holds the largest portfolio and spans multiple technology classes, while Lockheed Martin’s recent filing rate has declined sharply from its prior period.
Cauldron
Cauldron leads the ranking with 28 patent records, covering B08B (Cleaning), B23K (Welding/brazing), and G03F (Photolithography) at equal depth — a platform spread unusual among peers. This cross-class breadth suggests a systems integrator posture that addresses cleaning, surface preparation, and fine-feature processing within a single IP portfolio. No momentum data is provided in evidence for Cauldron directly; the breadth of its coverage is the primary competitive signal.
patent records: 28Lockheed Martin Corporation
Lockheed Martin holds 16 patent records, concentrated in B23K (Welding/brazing), B08B (Cleaning), and G02B (Optical elements). Its recent filing trend is sharply down at minus 83% versus the prior period, with only 2 recent records, indicating that laser cleaning is no longer a priority filing area for the company. The existing portfolio remains relevant for defense and aerospace cleaning applications, but new competitive pressure from this applicant appears limited in the near term.
patent records: 16| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Lockheed Martin Corporation | 2 | ▼ -83% |
| Trustees of Boston University | 5 | ▲ new entrant |
Semiconductor and photolithography branches are under-served relative to their technical relevance
Several IPC branches appear in the corpus at low share levels despite having plausible technical overlap with laser cleaning. These are observations of relative sparsity; whether they represent viable entry points depends on each organisation’s technical roadmap and existing portfolio.
H01L · Semiconductor Devices
H01L accounts for 7% of IPC branch records in the corpus, a low figure given the established use of laser cleaning in wafer and die processing for particle removal and oxide stripping. The sparse coverage may reflect that semiconductor-grade laser cleaning is prosecuted under process or equipment claims outside this class, or that dedicated application filings have not yet been made. Organisations with existing semiconductor process IP may find adjacency value in filing H01L-anchored claims that tie laser cleaning to device fabrication steps.
Search this in Eureka →H01S · Lasers & Stimulated Emission
H01S represents only 2% of branch records, suggesting that source-level laser physics — pulse shaping, wavelength selection, and beam quality optimisation specific to cleaning applications — is rarely claimed in this corpus. As ultrashort-pulse and high-repetition-rate sources become standard in precision cleaning, claims grounded in the laser source itself (rather than the cleaning process outcome) may offer differentiation with limited prior-art density. Entry would require combining laser-physics expertise with surface-interaction evidence.
Search this in Eureka →How leading applicants differ across technology routes
Strength of each leader across the main technology routes.
| Player | B23K 26 · Welding, soldering & brazing | B08B 7 · Cleaning (general) | G03F 7 · Photolithography & photomechanics | H01L 21 · Semiconductor devices | B23K 37 · Welding, soldering & brazing |
|---|---|---|---|---|---|
| Cauldron LP | Strong · 26 | Strong · 26 | Strong · 26 | Strong · 20 | Absent |
| G C Laser Systems | Strong · 20 | Moderate · 10 | Absent | Absent | Absent |
| Lockheed Martin Corporation | Strong · 16 | Strong · 10 | Absent | Absent | Absent |
| Engelsberg Audrey C | Strong · 6 | Strong · 6 | Strong · 6 | Strong · 6 | Absent |
| UVTech Systems | Strong · 5 | Strong · 5 | Strong · 5 | Strong · 5 | Absent |
| McRaney Brian | Strong · 9 | Absent | Absent | Absent | Strong · 7 |
| McRaney Gregory | Strong · 9 | Absent | Absent | Absent | Strong · 7 |
Frequently asked questions
Cauldron leads the ranking with 28 patent records, ahead of G C Laser Systems at 20 and Lockheed Martin at 16. The top five filers together account for 40% of the combined records of the hundred largest filers.
The field is in a decline stage. Annual filings peaked at 25 records in 2020 and have eased back since. Note that 2024–2026 counts are subject to publication lag and will increase as applications publish.
The United States has the highest filing count at the jurisdiction level, followed by China and Europe (EPO). Australia is a notable fourth, driven by Automation Innovation Pty Ltd’s activity. Japan and South Korea show limited coverage despite being major laser-equipment manufacturing markets.
B23K (Welding, soldering & brazing) and B08B (Cleaning, general) are the two most represented IPC classes, reflecting core laser-ablation and surface-preparation applications. G03F (Photolithography) and H01L (Semiconductor devices) form a secondary cluster relevant to microelectronics use cases.
Co-filing activity is limited. The most active pairing is Automation Innovation Pty Ltd with Siemens Mobility Pty Ltd, sharing two jointly filed records. Automation Innovation and Siemens Industry Inc share one additional joint filing. Overall, the field has developed through independent parallel efforts rather than broad consortia.
H01S (Lasers & stimulated emission) and H01L (Semiconductor devices) are among the sparser branches relative to their technical relevance, each accounting for a low share of IPC branch records. G03F (Photolithography) and C21D (Heat treatment of metals) are also comparatively under-served given their overlap with laser cleaning processes.
Ready to map your own laser cleaning patent landscape?
Join 18,000+ innovators using PatSnap Eureka to map any technology landscape: search 2B+ patents and papers, surface key assignees, and generate a report like this in minutes.
Disclaimer. This page is generated from PatSnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. PatSnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.