Pettibone, LLC
34Patents
0Active
34Granted
39Portfolio score
Filing activity: Mar 18, 1974 → Mar 23, 2005
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5640736A | Power feed device for hand held drain and sewer cleaner | Performing Operations; Transporting | 37 | Expired |
| US3955613A | Foundry mold conveyor system | Performing Operations; Transporting | 34 | Expired |
| US4313575A | Caps for hammermill rotors secured by individually-removable paired pin assemblies | Performing Operations; Transporting | 32 | Expired |
| US4328954A | Winch with compact, high efficiency and high ratio gearing suitable for free fall | Performing Operations; Transporting | 32 | Expired |
| US4010830A | Planetary wheel drive with accessible low-torque disc brakes | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US7156585B2 | Method and apparatus for drawing a mole through a composition | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4006664A | Steering system including tandem hydraulic cylinders with self-synchronization | Performing Operations; Transporting | 19 | Expired |
| US4172880A | Process and apparatus for automatically controlling the acid concentration in gas scrubbing solution | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5618123A | Coupling device for sewer and drain cleaning cable | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4361404A | Mixing equipment and agitator therefor for use with granular material and method of producing prepared granular material | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4027859A | Automatic control of liquid addition to a mixture by power sensing | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5588171A | Drain line cleaning apparatus | Performing Operations; Transporting | 12 | Expired |
| US4363742A | Method and apparatus for making battery paste | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4439056A | Machine suitable for breaking concrete pavement in place | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4477030A | Cone crushers | Performing Operations; Transporting | 10 | Expired |
| US4071168A | Level control system for a rotary cone-type feed hopper | Physics | 9 | Expired |
| US3976124A | Cooling-controlled tank for hydraulic fluid | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4365926A | Free-hanging load carrier for boom, with brake | Performing Operations; Transporting | 6 | Expired |
| US4050140A | Bearing housing adaptable to reworked shaft by reversal method of repair | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5662309A | Air intake assembly for a combustion fuel burner having an adjustable air intake port | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US3980282A | Material mixing apparatus | Performing Operations; Transporting | 5 | Expired |
| US4018350A | Hydraulic cyliner systems with safeguarded float action | Fixed Constructions | 4 | Expired |
| US5580225A | Pulsation causing check valve assembly for a plural piston pump system | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4231698A | System for one-hand control of two winches during hoisting of closed clamshell, with differentiation | Performing Operations; Transporting | 4 | Expired |
| US4089621A | Selectively pressurized tank for hydraulic fluid | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.