NALCO CHEMICAL COMPANY

2000

CHEMICALS FOR PREVENTING SCALE AND CORROSION IN CLOSED COOLING SYSTEMS, SUCH AS ARE USED IN AUTOMOTIVE AND DIESEL ENGINES;

A WEALTH OF INFORMATION

QUARTERLY NEWSLETTER REVIEWING CHEMICAL TREATMENT PROGRAMS FOR THE MINING AND MINERAL PROCESSING INDUSTRIES;

ACID-MATE

HYDROCARBON DISPERSANT ADDITIVE FOR OIL FIELD INJECTION OR DISPOSAL WELL WORKOVERS;

ADOCIDE

BIOCIDE FOR USE IN WATER FRACTURING;

ADOFOAM

Foaming Agent for Use in the Drilling of Oil Wells with Air;

ADOMITE MARK II

Chemical Compounds and Mixtures [of Chemical Compounds ] Useful as Low Fluid Loss Additives for Fluids and Drilling Muds in Oil Wells;2;

ADVANCED RECYCLE CENTER

RECYCLE CENTER;services related to the evaluation of industrial and commercial water systems;

ADVANCED RECYCLE CENTER

RECYCLE CENTER;services related to the evaluation of industrial and commercial water systems;The drawing is lined for the colors yellow, green, and light and dark blue.;

ADVANTAGE

refinery process consulting services;

AQUAGRAPH

DEVICE IN THE NATURE OF A SLIDE RULE WHICH IS USED FOR MAKING COMPUTATIONS, IN RELATION TO WATER TREATMENT;

ASK DOC PIC OL' DOC PIC

NEWSLETTER COLUMN ON THE SUBJECT OF CHEMICAL TREATMENT PROGRAMS FOR THE MINING AND MINERAL PROCESSING INDUSTRIES;

ASP-700

CHEMICALS FOR USE IN THE DRILLING INDUSTRY, NAMELY, ANIONIC POLYMERS;

BE ENVIROSMART

providing environmental information and consulting services;

BIO-AUDIT

ANALYSIS AND TESTING SERVICES FOR DETERMINING A COMPREHENSIVE MICRO-BIOLOGICAL CHEMICAL TREATMENT PROGRAM FOR PULP AND PAPER MILLS;

BIOCALC

computer software related to calculating biocide dosages/chemical concentrations and assisting in biocide program designs in the paper mill industry;BIO CALCULATOR;

BIOPAC

Electronic Apparatus Designed to Feed and Monitor Microbiocides in Industrial Process Water Systems;

BIOTREND

Analyzing Industrial Water Samples;

BIOWATCH

Monitoring services for microbiological control programs;

BIOWATCH

BIOLOGICAL WATCH;Monitoring services for paper machine microbiological control performance;

BLEM-ELIM

ANTI-BLEMISH PAINT FOR APPLICATION TO RUBBER TIRES;

BOILER SCAN

boiler control equipment;BOILER;

BOILERPAC

Electronic Apparatus Designed to Maintain Optimum Water Conditions in Boilers;

BROMOX

All purpose disinfectants; sanitizers for households, hospitals, institutional areas and industry;All-purpose cleaners;Chemicals, namely, bromine for use as an alternative to laundry bleach in households, hospitals, institutional areas and industry;

BSP

industrial boiler automation equipment for controlling boiler treatment chemical feed;

BSP

services related to automatic control and feed equipment used in industrial boiler equipment;

CASTERTRAK

monitors and controls for water treatment systems used in continuous casting of primary metals;caster track;industrial water treatment chemical additives used in the continuous casting of primary metals;

CASTERTRAK

electronic monitoring system used to control the addition of water treatment chemicals used in aqueous systems;CASTER TRACK;

CHEM-MATE

automated, computerized monitoring and chemical feed equipment to feed specialty chemicals into process streams receiving chemical additive treatment;

CHEMCALL

equipment and telecommunication systems for automatic level sensing and order entry devices;chem-call;

CHEMCALL

Chemical - Call;services providing inventory control information and product re-fill services to chemical formulation users which information and re-fill services are provided from on-side monitoring, automatic level sensing order entry and telecommunication systems;

CHEMCALL

chem-call; chemical;inventory control information and product refill information services for chemical formulation users;

CHEMCOAT

LUBRICANT COATING COMPOSITION FOR PROTECTING METALS AGAINST ABRASION DURING MECHANICAL WORKING;

COMPLETE CHEMICAL SOLUTIONS FOR YOUR RECYCLE NEEDS

consulting services in the field of the pulp and paper industry;

COMPUTA-FEED

COMPUTERIZED CHEMICAL FEEDERS FOR INDUSTRIAL USE, AND COMPUTER PROGRAMS THEREFOR, SOLD AS A UNIT;COMPUTER FEED;

CONTROL

chemical preparations for use in the petroleum recovery and processing industries; namely, dispersants and inhibitors to prevent asphaltene deposits from petroleum;

D-WET

DRYING AND DEWATERING CHEMICAL ADDITIVES FOR USE IN THE MANUFACTURE OF VINYL POLYMERS;

DANGEROUS GOODS TRANSPORTATION

newsletter reporting current events and topics for the transportation of hazardous materials;

DCS PLUS

D C S PLUS;Diagnostic Services for the papermill industry;

DETEX

Program for detecting contamination or leaks in boiler, cooling, waste water or other water steams for the Sugar Industry;

DIESEL DATELINE

No claim is made to exclusive use of the word Diesel apart from the mark as shown.;Newsletter Relating to the Maintenance of Diesel Locomotive Systems and Water and Fuel Treatments for Diesel Locomotive Systems;

DIGI-DISC

PHOTOMETERS;

DOSE & DIAGNOSE

DOSE AND DIAGNOSE;Technical consultation in the field of cooling water treatment;

DUSTBIND

DUST BIND;Ethylene Vinyl Acetate which prevents sand from blowing into residential areas around construction sites;

DUSTCON

Dust control, spray additive in the mining industry;

DUSTFOAM

DUST FOAM;DUST SUPPRESSING CHEMICALS FOR USE IN MINERAL AND ORE HANDLING AND PROCESSING;

DYNA-ZINC

industrial water treatment chemicals;

E.SOLV

Information management services for others, namely, computer database management including the management of data relating to chemical treatment results and inventory control in the field of water treatment and process chemistry via a global computer network;

ECOBROM

All-purpose disinfectants; sanitizers for household, hospitals, institutional areas and industry;All-purpose cleaners; bromine for use as an alternative to laundry bleach in households, hospitals, institutional areas and industry;

ELIMIN-ODOR

ordor control chemicals for industrial and municipal use;

ENDRIFT

ANTIMIST INGREDIENT INCORPORATED IN A HERBICIDE;

ENDUR

ENDURE;INDUSTRIAL CHEMICALS FOR USE IN THE PREVENTION OF SCALE IN PIPES AND PROCESSING EQUIPMENT;

ENVIROCYCLE

computer process modeling services related to the recycling and reuse of industrially generated waste waters;

EXCALIBUR

corrosion inhibitors for use in the processing of hydrocarbons in refining and chemical processing industries;

FEEDPAC

FEEDWATER PROPORTIONING UNITS FOR WATER BOILERS-NAMELY, WATER METERS, DRUM GAUGES AND METERING PUMPS AND PARTS THEREOF;

FEEDPAC

WATER TREATMENT METERING SYSTEMS FOR BOILERS ESSENTIALLY COMPRISING METERING PUMPS, DRUM LEVEL CALIBRATED GAUGES AND TIMERS;

FEEDPAC

FUEL OIL TREATMENT; CHEMICAL ADDITIVES FOR FUEL OIL;

FER-RID

CLEANING COMPOSITIONS FOR THE REMOVAL OF IRON;

FIRE-PREP

PRE-FLAME FUEL TREATMENT CHEMICALS;

FIRE.STICK

Chemicals-Namely, Fireside Deposit Inhibitor for Boilers;

FLOW PERM

FLOW PERMEABILITY;Felt permeability analysis in the paper industry;

FLOW PERM

Computer software used to analyze the performance of paper machine press felts and related paper machine systems;

FRAC-ACTION

FRACTURING OIL GELLING AGENT;

FRAC-ACTION

FRACTION;FRACTURE ACTION;FRACTURING OIL GELLING AGENT FOR USE IN THE OIL WELL DRILLING INDUSTRY;

FREEZ-SHIELD

ANTI-FREEZE;

FUEL-PREP

diesel fuel additive;

FUEL-TRACE

chemical preparation added to fuels and lubricants for use in the petroleum industry for source identification, and to reduce cross mixing;

FYRE-SAFE

Hydraulic Fluid;FIRE-SAFE;

G.O.O.D.

GOOD;promoting the use of recyclable chemical delivery methods;

GAS-COR

CHEMICALS FOR TREATING GAS PIPELINES, GAS GATHERING LINES AND GAS STORAGE FACILITIES;

GAS-TECH

CORROSION INHIBITORS FOR ADDITION TO GAS PIPELINES, GAS STORAGE AND GAS GATHERING SYSTEMS, AND GAS LIFT SYSTEMS;

GAS-TECH

CONSULTING SERVICES RELATING TO THE CHEMICAL TREATMENT OF NATURAL GAS PIPELINES, EQUIPMENT, STORAGE FACILITIES, GAS PLANTS, AND SYSTEMS;

GRADE EXPECTATIONS

marketing newsletter distributed to pulp & paper manufacturers, processors, and associated businesses;

HAULAGE DC

Chemical for road dust control;

HEC

WASTE CONTROL AND MANAGEMENT SERVICE FOR PAINT SPRAY BOOTH SLUDGES;

INOC

bioenzymes formulations for use in industrial waters;

INOC

inoc;bioenzymes for use in the treatment of waste water;

INTERCEPT

services related to the selection, application and monitoring of corrosion inhibitors used in refinery and petro chemical processes;

INVESTIGATOR

computer software programs for use in the selection of chemical treatment programs for the refining and chemical processing industries;

KEEPER CAP

CAP;plastic tamper proof seals for chemical containers;

KOAGULAN

CHEMICALS FOR USE IN OIL FIELD PRODUCTION;

LAP RIGHT

CHEMICAL SUSPENSIONS FOR LAPPING SEMI-CONDUCTOR WAFERS;LAP;

LONG RUN

Consulting Services Specializing in Increasing Ethylene Furnace Operating Time;

LONG RUN

Consulting Services Specializing in Increasing Ethylene Furnace Operating Time;

LOOK TO NALCO FIRST FOR WHAT'S NEXT

CONSULTING SERVICES IN THE FIELD OF CHEMICAL TREATMENT OF INDUSTRIAL COOLING AND BOILER WATERS;

LUBE-TRACE

lubrication trace;chemical additives for lubricating oils used to determine origin or grade;

LUBE-TRACE

chemical additives for lubricating oils;

MACRO-TROL

biocides for controlling shellfish and accompanying foulants in industrial water;water treatment chemicals for application to industrial water;

MAXI-MISER

WATER TREATING SERVICES ENTAILING ANALYSIS AND CHEMICAL TREATMENT OF BOILER WATER, COOLING WATER, AND INDUSTRIAL PROCESS WATER TO REDUCE AND ELIMINATE ENERGY LOSSES; FUEL TREATING SERVICES TO IMPROVE COMBUSTION EFFICIENCY AND TO REDUCE AND ELIMINATE ENERGY WASTE;THE LINING APPEARING IN THE DRAWING IS A FEATURE OF THE MARK AND IS NOT MEANT TO INDICATE COLOR.;

MAXIVEYOR

MECHANICAL FEEDER FOR CHEMICALS;

MINING AND MINERAL PROCESSING CHEMICALS

QUARTERLY NEWSLETTER REVIEWING CHEMICAL TREATMENT PROGRAMS FOR THE MINING AND MINERAL PROCESSING INDUSTRIES;MINING AND MINERAL PROCESSING CHEMICALS;

MINING CLAIM

QUARTERLY NEWSLETTER REVIEWING CHEMICAL TREATMENT PROGRAMS FOR THE MINING AND MINERAL PROCESSING INDUSTRIES;

MINITOX

testing kits comprised of chemicals and measuring apparatus for monitoring effectiveness of biocides used to control microbial contamination in industrial processes; namely, pulp and paper manufacturing, industrial cooling waters, mining and metal ore processing, and sewage and waste water treatments;

MRX

waste treatment services; namely, monitoring extraction and recovery of metals from waste waters;

MULTI-TREAT

Scale and Corrosion Inhibitors for Oil Field Use;

MUNICHEM

municipal chemical;chemical treatments and formulations used in municipal water treatment facilities and sewage treatment plants;

MUNICHEM

municipal chemical;analytical, monitoring, treatment and consulting services, related to operation of municipal water treatment and sewage treatment plants;

N

THE MARK CONSISTS OF A STYLIZED LETTER N CONSISTING OF TWO SOMEWHAT TRIANGULARSHAPES ADJACENT TO EACH OTHER.;CHEMICALS FOR USE IN CONDITIONING AND PROTECTING MINERALS AGAINST FREEZING;