US 4283750
Era
era-late-1900s
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
US Patent 4578175: Combined process for coal pyrolysis and char…
US 4582095
US Patent 4582095: Fabric monitoring means for power looms
US 4583088
US Patent 4583088: Method and apparatus for controlling access to a…
US 4583555
US Patent 4583555: Knee ligament testing system
US 4584620
US Patent 4584620: Measuring cassette for checking magnetic head…
US 4596123