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-4,610,176 Method and apparatus for isolating well pump units
The present invention relates to a method and apparatus for electrically isolating the pump unit for a well, such as an oil well and the like. More particularly,...
US-4,608,907 Rotary launcher and hydraulic ejector system
A rotary launcher for airborne launching of stores by use of a hydraulic ejector system. The ejector system is carried in stationary relationship to the launch...
US-4,608,769 Shoe construction
An improved construction of a shoe which permits the wearer to more readily step into the shoe without the use of his hands and which does not result in damage...
US-4,607,581 Furrow opener for seeder
A furrow opener shank for use with seeders has seed outlets and fertilizer outlets at the lower end thereof, and includes a sealer plate which will permit the...
US-4,605,237 Wire reel carriage
The present invention is a wire reel carriage including a pair of large wheels supported on an axle. The carriage has a support mechanism mounted on the axle for...
US-4,601,508 Streamlining appendage for vehicles
A streamlining appendage for the rearward end of a vehicle having a generally flat upright rearward surface includes a rearwardly tapering peripheral body...
US-4,599,913 Adjustable releasable cable coupling device
An adjustable releasable cable fastener device for a motorcycle clutch control cable which permits adjusting cable tension and replacing the control cable...
US-4,599,835 Insertable swimming pool step assembly
The present invention is a step assembly for insertion into swimming pools. A frame having a plurality of steps connected in an end-to-end fashion rests on the...
US-D284,643 Portable golf car
US-4,598,660 Bird scaring device
A device for scaring birds thereby aiding in the prevention of crop destruction due to the birds feeding thereon comprises in combination an actuator, such as an...
US-4,598,651 Furnace with oscillating grate
A solid fuel furnace having an oscillating grate plate solid fuel burner therein wherein the grate plates are in a stepped arrangement and every other plate...
US-D284,564 Combined motorcycle fairing bug deflector and mounting bracket
US-4,596,206 Seed treatment apparatus
The invention comprises an apparatus for treatment of seeds with liquid insecticide-fungicide and other materials. The apparatus has an opening at its upper end...
US-4,592,352 Computer-assisted tomography stereotactic system
An apparatus is described for performing surgical procedures through a patient's skull to a target within the skull by utilizing a computer-assisted tomography...
US-4,592,289 Reducing pollutant emissions from a spreader-stoker-fired furnace by stoichiometric control
Methods and apparatus for reducing pollutant emissions, and in particular, for reducing NO.sub.x and particulate emissions, from spreader-stoker-fired furnaces....
US-4,591,181 Hinge-wing drawbar mechanism
A hinge-wing drawbar device is disclosed wherein an internal and an external wing drawbar are secured to one another such that vertical movement of the external...
US-4,589,250 Sunflower header attachment for combine
Apparatus detachably mounting to the header platform of a combine in aligned relation to the sickle bar assembly for converting over to sunflower harvesting. The...
US-4,586,684 Aircraft loading apparatus
An on-board aircraft loading apparatus including an improved cargo platform and a simplified suspension frame therefor and improved hoist means for lifting and...
US-4,585,071 Method and apparatus guiding retractable machinery
A retractable tool apparatus is adapted to be mounted on a movable vehicle for working the area around and between objects in a row. The tool apparatus includes...
US-4,583,760 Vehicle stabilizer attachment and method
A stabilizer attachment for a work vehicle. The attachment is linear in operation and when it is attached adjacent one end of a vehicle and is then extended it...
US-D283,265 Combined bin valve and conveyor duct section for pressurized delivery systems
US-4,578,008 Hay bale loader
A lifting and loading apparatus installed on the front of a load-bearing vehicle for lifting and loading a hay bale or like load located forward of the vehicle...
US-4,577,580 Trolling attachment for boats
A trolling attachment for motor boats comprises pivotal trolling flaps for securement to the transom of a boat so that the flaps may be lowered into and raised...
US-4,573,742 Hydraulic stabilizing mechanism for use with hydraulic elevating system
A hydraulic stabilizing mechanism for connection with a main hydraulic hoist system for automatically actuating at least a pair of stabilizing cylinders to...
US-4,573,549 Portable golf car
A golf car apparatus (10) is disclosed. The golf car apparatus (10) includes a frame (12) supported off the surface of the ground by at least three wheels (14,...
US-4,573,427 Bird scaring device
A device for scaring birds thereby aiding in the prevention of crop destruction due to the birds feeding thereon comprises in combination an actuator, such as an...
US-4,573,405 Can crushing machine
A can crushing apparatus has an outer, bottomless drum housing, which is tubular and mounted on rollers to be freely rotatable, and a central inner roller which...
US-4,572,785 Water purifier unit
A water purifier for producing potable water from contaminated water, the purifier includes a crystallizer chamber with a plurality of projecting freeze...
US-4,571,225 Sheave assembly
A sheave assembly for use with rope or cable. The sheave assembly includes a sheave having a hub adapted to be rotatably mounted about an axis. An annular rim is...
US-4,570,514 Spanner wrench for use with a Macpherson strut retaining nut or the like
A spanner wrench (20) for use in removing and replacing a retaining nut (52) of a cartridge type shock absorber assembly (50) is disclosed. A spanner wrench (20)...
US-4,570,375 Wild game trap
A wild game trap including two multiangulated trap arms having an eye at one end mounted for rotation about a common pivot bolt and a power spring including a...
US-4,568,347 Intraocular lens
An implantable artificial intraocular bipod lens comprising a medial light-focusing lens body having fixation elements connected thereto. The fixation elements...
US-4,568,095 All terrain vehicle control system
A system for controlling two wheels at one end of a skid steer vehicle. The wheels are mounted at the distal ends of a pair of downwardly extending pivot arms;...
US-4,566,247 Captive column
A captive column structure comprising a plurality of spaced-apart elongated column portions having a plurality of spaced-apart compression core members...
US-D282,341 Meat grinding table
US-4,565,141 Seeding apparatus with fertilizer applicator
A shank is used for seeding apparatus and has two passageways for permitting metered seed, and metered fertilizer to be placed into the ground from the same...
US-4,561,985 Hec-bentonite compatible blends
Drilling fluids, both fresh and saline, containing additives and compositions, predominantly nonionic in nature, for the beneficiation of bentonite in such...
US-4,558,276 Device and method for sensing electric current in a conductor
A device and method for sensing current flowing in an electrical conductor. An open loop of flexible magnetically conductive material is positioned to ...
US-4,553,430 Illuminated wind socks for airports
An illuminated, vibration-resistant wind sock utilizes a light fixture mounted for rotation with the wind sock and having a spotlight bulb directed along the...
US-4,552,327 Hydraulic ejector
A store ejection apparatus having fluid energy accumulator means for receiving a fluid charge during system pressurization for subsequent supplying of the fluid...
US-4,549,498 Speed controlling apparatus
Speed controlling apparatus particularly is disclosed to be mounted with respect to a boat motor in a position confronting the propeller wash of the boat's...
US-4,548,194 Fuel stoker and furnace
A furnace having a primary heat exchange unit also providing a combustion chamber, a secondary heat exchange unit connected by an upper crossover conduit to the...
US-4,548,137 Wind cap
An upstanding nipple is provided for downward telescoping over the upper end of a furnace flue pipe outlet end and the upper end of the nipple is secured through...
US-4,544,196 Truck box extension apparatus
An extension apparatus (10) for vehicles is disclosed. The extension apparatus (10) includes a frame assembly having upper and lower frame members (12a,b) which...
US-4,544,038 Rotary tiller apparatus and pivotal support structure therefor
A rotary tiller apparatus includes a main support frame having a first member that is pivotal in a generally vertical direction and a second member that is...
US-4,541,584 Cable winding apparatus
An apparatus guides a cable so that the cable is wound on a drum in a substantially uniform manner. The apparatus includes a support slidable attached to a...
US-4,539,921 Drill frame construction
A modular drill frame construction which can assume configurations for standard seeding-drive fertilizer application, and with a modular section added, used for...
US-4,539,785 Captive column
A captive column structure comprising a plurality of spaced-apart elongated column portions having a compression core interconnecting the same. The compression...
US-4,535,868 Transverse engine mounting
A hydrostatic drive vehicle and a subassembly for such vehicle wherein the subassembly includes an engine and a pump mechanism arranged in a manner such that...
US-4,530,429 Self-propelled, foldable grain conveyor
A self-propelled, foldable grain conveyor that includes an intake conveyor section, an intermediate conveyor section and a discharge conveyor section. The...
← 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.