US 4197590
Index
United States Patent Records by Number and Title
Every entry below is a granted United States patent: a document that has completed examination and been published by the patent office. Applications that were never granted, and filings made only outside the United States, are outside this collection.
Each record carries the number, the official title, filing and grant dates, the named inventors, the assignee organisation where one was recorded, and the subject classification. The abstract is reproduced in full and the first claim where it could be verified. Every record links out to the complete official document, which holds the drawings and the full claim set this archive does not reproduce.
Records are ordered by title. If you are looking for a specific document and know its number, entering that number in the search box goes straight to it. If you are exploring a field rather than chasing a document, the classification index is the better route: it groups filings by what they are rather than by the words their drafters happened to choose.
On completeness: this is a compiled subset, not the full corpus. A search returning nothing here is not evidence that no such patent exists — the official databases are where that is established.
US 4227945
US Patent 4227945: Method for preventing decarburization of steel…
US 4236118
US Patent 4236118: Stabilized remote sensing high fidelity apparatus
US 4237224
US Patent 4237224: Process for producing biologically functional…
US 4277785
US Patent 4277785: Radio control circuit with microprocessor
US 4283750
US Patent 4283750: Capacitor having a housing provided with a crease…
US 4287880
US Patent 4287880: Solar collector
US 4288535
US Patent 4288535: Process for preparing silver halide photographic…
US 4322379
US Patent 4322379: Fabrication process for semiconductor bodies
US 4326877
US Patent 4326877: Method of stimulating grass root growth with…
US 4333758
US Patent 4333758: 1-Triacontanol plant growth stimulator formulations
US 4379172
US Patent 4379172: Separating volatile aromatics from roasted and…
US 4389323
US Patent 4389323: Process of making two uniform grades of calcium…
US 4392801
US Patent 4392801: Apparatus for manufacturing cheese product
US 4411685
US Patent 4411685: 1-Triacontanol plant growth stimulator formulations
US 4427511
US Patent 4427511: Photo-induced electron transfer method
US 4431403
US Patent 4431403: Burner and method
US 4432545
US Patent 4432545: Non-lethal cock fighting system
US 4433388
US Patent 4433388: Longitudinal parity
US 4470366
US Patent 4470366: Continuous single flap hinge and seal device for…
US 4505869
US Patent 4505869: Method for manufacturing wood-like molded product
US 4510072
US Patent 4510072: Composition having neutralized differential…
US 4551230
US Patent 4551230: Demetallization of hydrocarbon feed streams with…
US 4578175