Patent Archive

These PDFs are the canonical primary sources for technical claims. OCR summaries exist but are unverified; citations should point directly to the PDF scans.

Timber transport & log‑flume systems

Early patents for log transport, sorting, and artificial channels.

Water conduits & flow control

Water‑flow guidance, conduits, and related apparatus.

Turbines & lifting systems

Air turbine and fluid/gas lifting patents.

Soil cultivation & agriculture

Soil‑cultivation devices and micronutrient applications (later patents).

Process & reaction systems

Later patents on mixing and reaction‑chamber devices.

PKS Patent PDFs

pat-113-487Primary

pat-113-526Primary

pat-113-772-usaPrimary

pat-113-848Primary

pat-113-848-dePrimary

pat-114-660Primary

pat-117-749Primary

pat-118-713Primary

pat-122-144Primary

pat-125-819Primary

pat-136-214Primary

pat-138-296Primary

pat-138-296-frPrimary

pat-138-296-gbPrimary

pat-142-032Primary

pat-142-032-frPrimary

pat-143-069Primary

pat-145-141Primary

pat-166-644Primary

pat-166-644-chPrimary

pat-166-644-dePrimary

pat-196-680Primary

pat-196-680-bePrimary

pat-196-680-esPrimary

pat-196-680-frPrimary

pat-196-680-luxPrimary

pat-197-625-dePrimary

pat-202-390Primary

pat-265-991-dePrimary

pat-272-278Primary

pat-de-1-069-162Primary

Notes

Official patent office cross‑checks are still pending.
Summaries in research/02-patents.md are OCR‑derived and require verification.