Easy To Use Patents Search & Patent Lawyer Directory

At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.

Searching: North Dakota





Search by keyword, patent number, inventor, assignee, city or state:




Patent # Description
US-4,292,700 Sleeping bag liner
A sleeping bag liner (10) is disclosed. A hood panel (20) extends across the head portion of the top and bottom panels (26, 28) of liner (10). Buttons (40, 42)...
US-4,291,524 Method of defoliating
A machine for removing the top foliage of sugar beets having a frame with longitudinal side walls and a longitudinal center beam carrying three gear boxes. Rotor...
US-4,290,654 Wheel rim mounting device for variable wheel spacing
A wheel rim mounting device for variable wheel spacing in combination with a conventional wheel hub attached to an axle of a tractor includes a cylindrical...
US-4,287,955 Rotary tiller device
A rotary tiller device with a rotor disposed for rotation about a vertical axis is adapted for mounting on the lift arms of a mobile vehicle and includes a...
US-D260,670 Basketball return for attachment to basketball hoops
US-D260,669 Basketball return for attachment to basketball hoops
US-4,284,105 Discrete spiral flow imparting device
Apparatus for imparting spiral motion to material flowing in a tube comprising a relatively short spiral member anchored to prevent movement relative to the...
US-4,282,932 Rock picker
This rock picker invention is a towable farm implement which is capable of removing rocks from a farm field. A plurality of buckets scoop up quantities of soil...
US-4,280,711 Personnel carrier for weed control
A personnel carrier particularly suited for use in agricultural weed spraying is designed to be pulled behind a tractor having a standard three-point hitch. The...
US-4,279,566 Backhoe frame wedge mount
A pair of connection devices serve as the upper connection between a traction vehicle such as a skid steer loader and an accessory apparatus such as a backhoe....
US-4,276,314 Method of preparing hash brown potato product
A process for preparing a frozen hash brown potato product including cooking raw potato slabs, cooling cooked potato slabs, cooling the cooked potato slabs to a...
US-4,272,092 Agricultural transporter
A transporter for a pair of transversely elongated agricultural implements (20, 21) having first, mutually remote ends and second ends in abuting apposition, the...
US-4,271,830 Chiropractic table
The chiropractic table of the present invention includes a base frame, an intermediate frame above the base frame, and a table frame above the intermediate...
US-4,269,591 Heater unit and container
A heater unit usable with a container for storing inflammable liquid fuel to burn the fuel in a controlled manner. The heater unit has a cylindrical cup-shaped...
US-4,269,535 Earth working implement control system
An operating and down-pressure hydraulic control system for vehicle-mounted implements such as earth compactors and the like. The assembly of hydraulic...
US-4,269,428 Hideaway tow hitch
A towing device releasably couples a towing vehicle to a towed vehicle and is movably mounted on the chassis beneath the grill guard of the towed vehicle. In a...
US-4,266,462 Airborne stores arming trigger unit
An airborne stores arming trigger unit and more particularly an arming trigger unit used in conjunction with bombs and the like which are carried by military...
US-4,263,521 Differential sample and hold circuit
An angle servo preamplifier for use in the tracking antenna servo drive sem of a precision tracking radar system. The angle servo preamplifier processes...
US-4,263,052 Production of fructose and useful by-products
A process for obtaining fructose solutions or solid fructose, a raw material containing sucrose and/or similar fructofuranosides is hydrolyzed to fructose and...
US-4,262,921 Tandem implement hitch
A generally horizontal forwardly opening U-shaped frame is provided including a pair of front to rear extending elongated opposite side members and a rear cross...
US-D258,920 Boot buckling aid
US-4,261,073 Chimney sweep
A sweep member is provided defining a pair of generally circular disk-shaped assemblies secured together as a single unit with the assemblies each disposed,...
US-4,260,459 Vented water distiller
A batch operation water distiller is provided with a venting valve between the boiling chamber and the condenser. Operation of the venting valve during the...
US-4,258,660 Animal litter composition
An animal litter composition in pelletized form comprising straw as the major ingredient, sunflower hulls and dried alfalfa as minor constituents, and with a...
US-4,255,845 Process for repairing small leaks in metallic vessels
Porosity or other types of small leaks in metallic vessels designed to hold fluids under pressure or partial vacuum are repaired by: (1) sealing the chamber of...
US-4,253,211 Toilet bowl cleaning apparatus
Apparatus for cleaning a toilet bowl which comprises a generally u-shaped member having first and second legs which are joined by an arcuate axial portion. The...
US-4,244,193 Ambient air cooling system
Apparatus for utilizing ambient air to provide supplemental cooling of a refrigerated enclosure in combination with a mechanical refrigeration system. Initial...
US-4,243,105 Foldable agricultural implement
An agricultural implement comprising a tool bar having ground working tools supported thereon. The tool bar comprises a main frame with a pair of wing frames...
US-4,241,093 Food supplement from vegetable pulp and method of preparing same
A bland food supplement which can be used as a filler, extender, or protein binder in a variety of food products is made from water-extracted vegetable pulp such...
US-4,234,224 Truck box cover device
The invention comprises a truck box cover device. The device has a rod with a rectangular tarp attached to the rod at its one end and attached to the edge of a...
US-4,232,906 Machine for stripping shingles
A machine for stripping shingles from a surface, the machine comprising a frame having a handle portion and first and second leg portions, an axle mounted on the...
US-4,230,100 Chiropractic table
The chiropractic table of the present invention includes a base frame, an intermediate frame above the base frame, and a table frame above the intermediate...
US-4,229,880 Combined eating utensil
A combined eating utensil usable as a holder, pusher, blocking member, and knife. The utensil is a generally planar member having a longitudinally-extending...
US-4,227,344 Automatic parking lot gate with four-way flex connector
A parking lot gate is provided with a flexible connector between the elongated gate arm and the arm drive mechanism to prevent breakage of the gate arm or the...
US-4,227,314 Carpenter square with tape holder
A carpenter square having a tape holding section adapted to receive tape measure housings of varying width. The tape housing engages a curved section and one leg...
US-4,224,706 Pneumatic bed
A bed assembly is disclosed. The bed assembly includes an air mattress for supporting a human body in a generally prone position. The air mattress has an overall...
US-RE30,409 Powered contaminant evacuator
This invention relates to an improvement in an apparatus attached to an air cleaner such as of an internal combustion engine as in connection with a farm tractor...
US-4,223,741 Vehicle for agricultural use with transport wheels
A vehicle to be moved in either of two mutually perpendicular directions, and including a first plurality of caster wheels, a second plurality of wheels...
US-D256,921 Tractor body
US-4,221,353 Vehicle and boom assembly
A boom assembly mountable on a vehicle is provided in which the boom is supported at a lower or working position by a first spring. A manually applied force...
US-4,218,317 Reverse osmosis water purifier
A reverse osmosis water purifying device is provided with a flush water restrictor which serves to provide a suitable back pressure on the reverse osmosis...
US-4,217,971 Rotating powered step
A powered step for use with large construction equipment such as large crawler-type tractors, mining trucks and similar vehicles that have an operator's platform...
US-4,216,581 Hair cutting appliance
A hair cutting appliance includes a hair handling and vacuuming device having a hair passageway extending through the device from a forward intake portion to a...
US-D256,364 Combined tractor cab and hood unit
US-4,210,035 Boot buckling aid
A device for aiding the operation of boot buckles having a pivotally attached tensioning lever and a clamping loop, comprising an elongated member having a...
US-4,206,839 Safety lift apparatus for portable grain elevators and the like
Lift apparatus is adapted for raising and lowering portable grain elevators and the like and includes both a power lift mechanism and an alternative manual lift...
US-4,206,817 Scraper blade mechanism for double disc
Seed sowing equipment is disclosed including a pair of cooperating disc blades mounted for rotation on an axle. A scraper is provided for cooperation with each...
US-4,201,349 Food retailing grinding machine
A motor-driven grinding machine or unit has been provided to enable consumer-selected food items, such as nut kernels and grains to be quickly, uniformly and...
US-4,201,231 Pipe cover and holder
A pipe holder and bowl cover for a smoker's pipe is comprised of a spherical mass of open-celled spongy plastic foam with a bowl receiving bore provided therein...
US-4,200,423 Storable boom attachment for a construction machine
This invention relates to a storable hoisting gin or boom member attachment for bucket loaders which provides an arrangement for quickly and easily moving a boom...
← Previous | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | Next →

File A Patent Application

  • Protect your idea -- Don't let someone else file first. Learn more.

  • 3 Easy Steps -- Complete Form, application Review, and File. See our process.

  • Attorney Review -- Have your application reviewed by a Patent Attorney. See what's included.