Inventor

Philip D. Arnold

Inventor

Mt. Clemens, MI, US

Overview

11→

Patents

1987–2021

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 11 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y10Tprimary

Y10TTechnical subjects covered by former us classification25%

F01LCyclically operating valves for machines or engines11%

F16HGearing11%

F02FCylinders, pistons or casings, for combustion engines8%

F16CShafts8%

B23PMetal-working not otherwise provided for6%

F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines6%

F16DCouplings for transmitting rotation6%

A61BDiagnosis3%

A61MDevices for introducing media into, or onto, the body3%

PatentTitleYear

10,918,786Method for manufacturing a cannula unit2021 6,220,946'Active polishing of rotatable article surfaces'2001 5,343,618'Method of assembling a shaft and apertured member'1994 5,265,566'Assembled seal disc for a crankshaft'1993 5,207,120'Assembled crankshaft'1993 5,201,246'Lightweight composite camshaft'1993 4,922,785'Tubular camshaft assemblies and the like'1990 4,841,627'Apparatus for making tubular camshaft assemblies'1989 4,835,832'Method of assembling tubular shaft assemblies'1989 4,719,677'Crankcase manufacturing method'1988 4,690,112'Crankcase structure'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1994Patents assigned to GEN MOTORS CORP (9)· patent assignee history

1987–1988Based in Pleasant Ridge, MI, US· patent location history

1989–1990Based in Bloomfield Hills, MI, US· patent location history

1993–1994Based in Mt. Clemens, MI, US· patent location history

2001Based in Clinton Township, MI, US· patent location history

2021Patents assigned to ROCHE DIABETES CARE INC (1)· patent assignee history

2021Based in Heppenheim, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GEN MOTORS CORP	9	1987–1994
ROCHE DIABETES CARE INC	1	2021

Locations

Location	Patents	Span
Mt. Clemens, MI, US	4	1993–1994
Bloomfield Hills, MI, US	3	1989–1990
Pleasant Ridge, MI, US	2	1987–1988
Heppenheim, DE	1	2021
Clinton Township, MI, US	1	2001