Inventor

HOFFMAN WILLIAM D

US4 patents

⚠️ This page may combine multiple inventors who share the name “HOFFMAN WILLIAM D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

(unassigned)

2 patents

US5720407AFeb 24, 1998

Foam cap for evaporative coolers

23 citations86

US5509565AApr 23, 1996

Foam cap for evaporative coolers

13 citations67

VERBECK IV GUIDO FRIDOLIN

1 patent

US8586943B2Nov 19, 2013

Petroleum oil analysis using liquid nitrogen cold stage—laser ablation—ICP mass spectrometry

VERBECK IV GUIDO FRIDOLIN4 citations58

HOFFMAN WILLIAM D

1 patent

US5206966AMay 4, 1993

Carpentry tool

HOFFMAN WILLIAM D1 citations41