Inventor
PIERCE WILLIAM C
US52 patents
⚠️ This page may combine multiple inventors who share the name “PIERCE WILLIAM C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAI ANCHORLOK INC
12 patentsUS5377579AJan 3, 1995
Fluid-operated spring brake atuator with funnel-shaped pressure plate
NAI ANCHORLOK INC37 citations93
US5315918AMay 31, 1994
Tamper-resistant brake actuator
NAI ANCHORLOK INC44 citations93
US5722311AMar 3, 1998
Fluid-operated brake actuator with spring chamber isolation
NAI ANCHORLOK INC43 citations92
US5353688AOct 11, 1994
Tamper-resistant brake actuator
NAI ANCHORLOK INC39 citations92
US5372059ADec 13, 1994
Fluid operated brake actuator with internal valve
NAI ANCHORLOK INC34 citations91
US5799564ASep 1, 1998
Spring brake actuator having two-ply pressure plate assembly
NAI ANCHORLOK INC17 citations84
US5713238AFeb 3, 1998
Spring brake actuator with spring force measurement
NAI ANCHORLOK INC18 citations84
US5725076AMar 10, 1998
Spring brake actuator and caging bolt therefor
NAI ANCHORLOK INC19 citations80
US5649469AJul 22, 1997
Stroke indicator for an air-operated combination diaphragm spring brake
NAI ANCHORLOK INC10 citations74
US5345858ASep 13, 1994
Spring brake actuator with a pressure plate bearing for a caging tool
NAI ANCHORLOK INC16 citations74
US5655431AAug 12, 1997
Spring brake actuator, caging bolt assembly therefor, and method of assembly thereof
NAI ANCHORLOK INC17 citations71
US5664478ASep 9, 1997
Spring brake actuator with corrosion fuses
NAI ANCHORLOK INC4 citations63
NAI NEWAY INC
9 patentsUS5639110AJun 17, 1997
Trailing arm suspension
NAI NEWAY INC86 citations96
US5413374AMay 9, 1995
Adjustable bushing
NAI NEWAY INC67 citations96
US5335932AAug 9, 1994
Apparatus for mounting a trailing arm air suspension to a sliding frame
NAI NEWAY INC58 citations96
US5682922ANov 4, 1997
Dual in-line height control valve assembly
NAI NEWAY INC20 citations92
US5588665ADec 31, 1996
Trailing arm suspension with lever arm
NAI NEWAY INC36 citations92
US5393096AFeb 28, 1995
Suspension frame bracket
NAI NEWAY INC21 citations92
US5375819ADec 27, 1994
Dual in-line height control valve assembly
NAI NEWAY INC29 citations92
US5787932AAug 4, 1998
Bypass tube for time delay height control valve
NAI NEWAY INC18 citations84
US5335695AAug 9, 1994
Height control valve with adjustable spool
NAI NEWAY INC18 citations74
LEAR SIEGLER INC
6 patentsUS4693486ASep 15, 1987
Trailing arm suspension with wrapper compression axle mounting
LEAR SIEGLER INC86 citations96
US4615539AOct 7, 1986
Suspension for automotive vehicles
LEAR SIEGLER INC66 citations96
US4262929AApr 21, 1981
Suspension with resilient reaction bar
LEAR SIEGLER INC39 citations93
US4634141AJan 6, 1987
Axle lift mechanism
LEAR SIEGLER INC25 citations90
US4553773ANov 19, 1985
Load equalizer valve and suspension system
LEAR SIEGLER INC19 citations74
US4729579AMar 8, 1988
Axle lift mechanism with spring cup wear plate
LEAR SIEGLER INC9 citations71
PITTS IND INC
6 patentsUS4296851AOct 27, 1981
Drive hub with curved springs and drive keys for electro-magnetic clutch
PITTS IND INC47 citations92
US4601378AJul 22, 1986
Supporting bracket for hydraulic pump and clutch
PITTS IND INC56 citations90
US4564092AJan 14, 1986
Two speed, two pulley compressor drive clutch
PITTS IND INC21 citations82
US4129026ADec 12, 1978
Method of making a pulley groove
PITTS IND INC14 citations71
US4069572AJan 24, 1978
Method of making clutch pulley assembly
PITTS IND INC15 citations71
US4004335AJan 25, 1977
Method of making clutch pulley
PITTS IND INC14 citations71
HOLLAND NEWAY INT INC
4 patentsUS6241266B1Jun 5, 2001
Trailing arm suspension with wrapper compression axle mounting and articulated axle mounting
HOLLAND NEWAY INT INC121 citations98
US6328322B1Dec 11, 2001
Drive axle suspension
HOLLAND NEWAY INT INC54 citations93
US6152486ANov 28, 2000
Anti-creep device
HOLLAND NEWAY INT INC33 citations93
USRE36955ENov 21, 2000
Fluid-operated brake actuator with internal valve
HOLLAND NEWAY INT INC12 citations72
NEWAY CORP
4 patentsUS5203585AApr 20, 1993
Split-beam suspension system
NEWAY CORP119 citations98
US5112078AMay 12, 1992
Axle mounting assembly
NEWAY CORP85 citations96
US5088763AFeb 18, 1992
Apparatus for mounting a trailing arm air suspension to a sliding frame
NEWAY CORP63 citations96
US5083812AJan 28, 1992
Suspension with stiffener arm
NEWAY CORP40 citations89
NEWAY ANCHORLOK INT INC
3 patentsUS5924712AJul 20, 1999
Dual trailing arm vehicle suspension
NEWAY ANCHORLOK INT INC57 citations96
US5921532AJul 13, 1999
Air spring with internal support member
NEWAY ANCHORLOK INT INC116 citations95
US6006651ADec 28, 1999
Spring brake actuator with filtered service vent opening
NEWAY ANCHORLOK INT INC33 citations92
HOLLAND GROUP INC
2 patentsLEAR SIEGLER TRUCK PRODUCTS CO
1 patentLEAR SIEGLER NEWAY CORP
1 patentHAMMERBLOW CORP
1 patentANCHORLOK CORP
1 patentShowing the top 50 of 52 patents by PatentIndex Score.